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Gita - South Pacific
1. TROPICAL CYCLONE 09P (NINE) WARNING NR 001
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 090000Z --- NEAR 13.8S 175.5W MOVEMENT PAST SIX HOURS - 065 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 050 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 000 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT REPEAT POSIT: 13.8S 175.5W --- FORECASTS: 12 HRS, VALID AT: 091200Z --- 13.8S 172.4W MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 005 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT 155 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 225 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 115 DEG/ 17 KTS --- 24 HRS, VALID AT: 100000Z --- 15.2S 169.3W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 005 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 245 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 240 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 150 DEG/ 15 KTS --- 36 HRS, VALID AT: 101200Z --- 17.8S 167.7W MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 005 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 245 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 185 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 185 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 110000Z --- 20.2S 168.0W MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 255 DEG/ 10 KTS --- 72 HRS, VALID AT: 120000Z --- 21.3S 172.1W MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 280 DEG/ 10 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 130000Z --- 20.7S 176.2W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 265 DEG/ 08 KTS --- 120 HRS, VALID AT: 140000Z --- 20.9S 179.8W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT --- REMARKS: 090300Z POSITION NEAR 13.8S 174.7W. TROPICAL CYCLONE 09P (NINE), LOCATED APPROXIMATELY 281 NM WEST OF PAGO PAGO, HAS TRACKED EAST-NORTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS FLARING CONVECTION BEGINNING TO WRAP INTO THE CENTER OF CIRCULATION ALONG WITH THE UNDERLYING MID LEVEL CLOUD LAYER. THE INITIAL POSITION IS BASED ON ANIMATED MULTISPECTRAL IMAGERY ALONG WITH A BULLSEYE 082124Z METOP-A ASCAT AMBIGUITIES IMAGE. THE INITIAL INTENSITY IS ASSESSED AT 40 KNOTS BASED ON THE CORRESPONDING METOP- A ASCAT WIND BARBS IMAGE WHICH REVEALS A BROAD AREA OF 35 TO 40 KNOTS IN THE NORTHERN SEMI-CIRCLE OF THE LOW LEVEL CIRCULATION (LLC). WINDS IN THE SOUTHERN SEMI-CIRCLE ARE MUCH WEAKER (PREDOMINANTLY 10 TO 20 KTS). THE SOUTH PACIFIC CONVERGENCE ZONE TO THE NORTH OF TC 09P IS CAUSING THIS ASYMMETRY IN THE LLC AND AIDING IN SPIN UP. AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGE FROM T1.5 TO T2.5 (25 TO 35 KNOTS) AND ARE SLIGHTLY BEHIND ACTUAL INTENSITY AS THE CONVECTIVE STRUCTURE BEGINS TO CONSOLIDATE. UPPER LEVEL ANALYSIS INDICATES THAT 09P IS IN A FAVORABLE TO MARGINALLY FAVORABLE SHEAR ENVIRONMENT DUE TO AN UPPER LEVEL POINT SOURCE LOCATED JUST TO ITS SOUTHWEST. THERE IS ALSO STRONG DIFFLUENT POLEWARD OUTFLOW OBSERVED OVER THE SYSTEM. SEA SURFACE TEMPERATURES ARE FAVORABLE (28-30 CELSIUS) AS WELL. TC 09P IS EXPECTED TO INITIALLY TRACK EASTWARD AND THEN DEFLECT TO THE SOUTH UNDER THE INFLUENCE OF A NEAR EQUATORIAL RIDGE TO THE NORTHEAST. AFTER TAU 48, TC 09P WILL CONTINUE ITS RECURVE TO THE WEST AS IT ENCOUNTERS THE SUBTROPICAL RIDGE TO THE SOUTH. DUE TO THE VERY FAVORABLE ENVIRONMENT, TC 09P IS EXPECTED TO RAPIDLY INTENSIFY BY 30 KNOTS IN THE NEXT 24 HOURS. IT WILL THEN WEAKEN GRADUALLY UNTIL TAU 24 AS IT ENCOUNTERS CONVERGENCE FROM THE UPPER LEVEL LOW TO THE WEST. AFTER TAU 48, GRADUAL REINTENSIFICATION IS EXPECTED AS 09P TRACKS BACK UNDER AN AREA OF UPPER LEVEL DIFFLUENCE. DUE TO THE OBVIOUS STEERING FEATURES, NUMERICAL MODEL GUIDANCE IS IN TIGHT AGREEMENT, LENDING HIGH CONFIDENCE IN THE JTWC TRACK FORECAST AT THIS TIME. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 090000Z IS 12 FEET. NEXT WARNINGS AT 090900Z, 091500Z, 092100Z AND 100300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 002
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 090600Z --- NEAR 14.3S 174.5W MOVEMENT PAST SIX HOURS - 095 DEGREES AT 14 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 000 NM SOUTHEAST QUADRANT 000 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT REPEAT POSIT: 14.3S 174.5W --- FORECASTS: 12 HRS, VALID AT: 091800Z --- 15.2S 171.3W MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 240 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 245 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 135 DEG/ 15 KTS --- 24 HRS, VALID AT: 100600Z --- 17.3S 169.1W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 000 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 270 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 225 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 165 DEG/ 11 KTS --- 36 HRS, VALID AT: 101800Z --- 19.5S 168.5W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 235 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 210 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 110600Z --- 21.0S 169.5W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 255 DEG/ 09 KTS --- 72 HRS, VALID AT: 120600Z --- 21.8S 173.3W MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 275 DEG/ 12 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 130600Z --- 21.5S 178.5W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 260 DEG/ 10 KTS --- 120 HRS, VALID AT: 140600Z --- 22.0S 177.3E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT --- REMARKS: 090900Z POSITION NEAR 14.5S 173.7W. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 110 NM WEST- SOUTHWEST OF AVATA SAMOA, HAS TRACKED EASTWARD AT 14 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A MASS OF CONVECTION LOCATED TO THE NORTH OF THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS BASED ON A 090318Z 91 GHZ SSMIS MICROWAVE IMAGE SHOWING THE DEEP CONVECTION CONFINED TO THE NORTHERN SEMI-CIRCLE OF TC 09P. THE INITIAL INTENSITY OF 40 KNOTS IS BASED ON A 082125Z ASCAT IMAGE SHOWING 40 KNOT WINDS IN THE NORTHERN SEMI-CIRCLE AND 10 TO 20 KNOT WINDS IN THE SOUTHERN SEMI-CIRCLE. UPPER LEVEL ANALYSIS SHOWS FAVORABLE VERTICAL WIND SHEAR (10 TO 15 KNOTS) AND A GOOD OUTFLOW CHANNEL ASSOCIATED WITH THE UPPER LEVEL LOW TO THE EAST. SEA SURFACE TEMPERATURES ARE FAVORABLE FOR DEVELOPMENT (30 DEGREES CELSIUS). TC 09P IS BEING STEERED SOUTHEASTWARD BY THE NEAR EQUATORIAL RIDGE TO THE NORTHWEST. TC 09P WILL TRACK SOUTHEASTWARD THROUGH TAU 24 AND RAPIDLY INTENSIFY TO 70 KNOTS. TC 09P WILL THEN TURN SOUTHWARD THROUGH TAU 36. AFTER TAU 36 TC 09P WILL BEGIN TO TRACK SOUTHWESTWARD AND THEN WESTWARD WITH AN INTENSITY OF 75 KNOTS. DYNAMIC MODEL GUIDANCE IS IN GOOD AGREEMENT. THEREFORE THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 090600Z IS 15 FEET. NEXT WARNINGS AT 091500Z, 092100Z, 100300Z AND 100900Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 003
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 091200Z --- NEAR 14.5S 173.0W MOVEMENT PAST SIX HOURS - 100 DEGREES AT 15 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 190 NM NORTHWEST QUADRANT REPEAT POSIT: 14.5S 173.0W --- FORECASTS: 12 HRS, VALID AT: 100000Z --- 15.8S 170.1W MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 255 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 150 DEG/ 13 KTS --- 24 HRS, VALID AT: 101200Z --- 18.1S 168.7W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 280 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 235 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 185 DEG/ 11 KTS --- 36 HRS, VALID AT: 110000Z --- 20.3S 168.9W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 240 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 111200Z --- 21.4S 170.8W MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 270 DEG/ 11 KTS --- 72 HRS, VALID AT: 121200Z --- 21.3S 175.6W MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 270 DEG/ 10 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 131200Z --- 21.1S 179.9W MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 255 DEG/ 09 KTS --- 120 HRS, VALID AT: 141200Z --- 21.9S 176.2E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 091500Z POSITION NEAR 14.8S 172.3W. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 134 NM WEST OF PAGO PAGO, HAS TRACKED EASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS DEEP CONVECTION LOCATED TO THE NORTH OF THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS BASED ON A 091200Z GOES-15 INFRARED SATELLITE IMAGE SHOWING DEEP CONVECTION CONFINED TO THE NORTHERN SEMI-CIRCLE OF TC 09P WITH A CLOUD NOTCH FEATURE. THE INITIAL INTENSITY OF 45 KNOTS IS BASED ON A DVORAK ESTIMATE OF T3.0 (45 KNOTS) FROM NFFN, THIS IS HEDGED ABOVE THE DVORAK ESTIMATE OF T2.5 (35 KNOTS) FROM PGTW. UPPER LEVEL ANALYSIS SHOWS FAVORABLE VERTICAL WIND SHEAR (10 TO 15 KNOTS) AND A GOOD OUTFLOW CHANNEL ASSOCIATED WITH THE UPPER LEVEL LOW TO THE EAST. SEA SURFACE TEMPERATURES ARE FAVORABLE FOR DEVELOPMENT (30 DEGREES CELSIUS). TC 09P IS BEING STEERED EASTWARD BY THE NEAR EQUATORIAL RIDGE TO THE NORTHWEST. TC 09P WILL TRACK SOUTHEASTWARD THROUGH TAU 24 AND RAPIDLY INTENSIFY TO 70 KNOTS. TC 09P WILL THEN TURN SOUTHWARD THROUGH TAU 36. AFTER TAU 36 TC 09P WILL BEGIN TO TRACK SOUTHWESTWARD AND THEN WESTWARD WITH AN INTENSITY OF 80 KNOTS. DYNAMIC MODEL GUIDANCE IS IN GOOD AGREEMENT. THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 091200Z IS 16 FEET. NEXT WARNINGS AT 092100Z, 100300Z, 100900Z AND 101500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 004
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 091800Z --- NEAR 15.3S 171.4W MOVEMENT PAST SIX HOURS - 120 DEGREES AT 17 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT REPEAT POSIT: 15.3S 171.4W --- FORECASTS: 12 HRS, VALID AT: 100600Z --- 17.2S 169.1W MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 130 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 245 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 165 DEG/ 13 KTS --- 24 HRS, VALID AT: 101800Z --- 19.7S 168.5W MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 280 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 235 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 205 DEG/ 08 KTS --- 36 HRS, VALID AT: 110600Z --- 21.2S 169.3W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 255 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 111800Z --- 21.7S 171.4W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 275 DEG/ 12 KTS --- 72 HRS, VALID AT: 121800Z --- 21.3S 176.4W MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 270 DEG/ 10 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 131800Z --- 21.4S 179.5E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 245 DEG/ 10 KTS --- 120 HRS, VALID AT: 141800Z --- 22.9S 175.7E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 092100Z POSITION NEAR 15.8S 170.8W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 72 NM SOUTHWEST OF PAGO PAGO, HAS TRACKED EAST-SOUTHEASTWARD AT 17 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS DEEP CONVECTION PREDOMINANTLY LOCATED TO THE NORTH OF THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS BASED ON THE ANIMATED INFRARED LOOP AND A 091830Z 89 GHZ AMSU MICROWAVE IMAGE SHOWING DEEP CONVECTION IN THE NORTHEAST QUADRANT. THE INITIAL INTENSITY OF 45 KNOTS IS ON THE UPPER END OF MULTI- AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T2.5 TO T3.0 (35 TO 45 KNOTS) FROM PGTW AND KNES RESPECTIVELY. ENVIRONMENTAL ANALYSIS SHOWS THE SYSTEM IS IN AN AREA OF LOW VERTICAL WIND SHEAR (10 TO 15 KNOTS) AND IS TRACKING THROUGH WARM (30 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS REVEALS THE SYSTEM HAS STRONG POLEWARD OUTFLOW. TC 09P IS TRACKING TO THE SOUTHEAST UNDER THE INFLUENCE OF THE NEAR EQUATORIAL RIDGE TO THE NORTHWEST. TC 09P IS FORECAST TO TRACK SOUTHEASTWARD THROUGH TAU 24 AT WHICH TIME IT WILL RECURVE BACK TO THE SOUTHWEST, EVENTUALLY TRACKING WESTWARD BY TAU 48. THE SYSTEM IS FORECAST TO STEADILY INTENSIFY UNDER FAVORABLE CONDITIONS, REACHING A PEAK OF 85 KNOTS AROUND TAU 96. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN STRONG AGREEMENT LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 091800Z IS 15 FEET. NEXT WARNINGS AT 100300Z, 100900Z, 101500Z AND 102100Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#5
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 005
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 100000Z --- NEAR 16.1S 170.0W MOVEMENT PAST SIX HOURS - 120 DEGREES AT 16 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 135 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT REPEAT POSIT: 16.1S 170.0W --- FORECASTS: 12 HRS, VALID AT: 101200Z --- 18.4S 168.6W MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 285 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 225 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 190 DEG/ 11 KTS --- 24 HRS, VALID AT: 110000Z --- 20.5S 168.9W MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 280 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 235 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 240 DEG/ 10 KTS --- 36 HRS, VALID AT: 111200Z --- 21.5S 170.7W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 255 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 265 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 120000Z --- 21.7S 173.3W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 275 DEG/ 12 KTS --- 72 HRS, VALID AT: 130000Z --- 21.2S 178.3W MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 255 DEG/ 10 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 140000Z --- 22.0S 177.6E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 235 DEG/ 09 KTS --- 120 HRS, VALID AT: 150000Z --- 24.0S 174.3E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 100300Z POSITION NEAR 16.7S 169.7W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 110 NM SOUTH- SOUTHWEST OF MANUA ISLANDS, HAS TRACKED EAST-SOUTHEASTWARD AT 16 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED MULTI-SPECTRAL SATELLITE IMAGERY DEPICTS DEEP CONVECTION PREDOMINANTLY LOCATED TO THE WEST OF THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE ANIMATED MUTLI- SPECTRAL LOOP AND A 092104Z METOP-A ASCAT IMAGE SHOWING A SLIGHTLY ELONGATED BUT WELL DEFINED LLCC. THE INITIAL INTENSITY OF 50 KNOTS IS ON THE UPPER END OF MULTI- AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T2.5 TO T3.0 (35 TO 45 KNOTS) FROM PGTW AND KNES RESPECTIVELY. THE INITIAL INTENSITY IS SUPPORTED BY THE AFOREMENTIONED ASCAT IMAGE THAT HAS AN EXPANSIVE 45 KNOT WIND FIELD WILL SOME 50 KNOT WIND BARBS. ENVIRONMENTAL ANALYSIS SHOWS THE SYSTEM IS IN AN AREA OF MODERATE (15-20 KNOTS) VERTICAL WIND SHEAR AND IS TRACKING THROUGH WARM (29-30 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS REVEALS THE SYSTEM HAS STRONG OUTFLOW ON THE EASTERN SIDE OF THE LLCC. TC 09P IS TRACKING TO THE SOUTHEAST UNDER THE COMBINED INFLUENCE OF THE NEAR EQUATORIAL RIDGE (NER) LOCATED TO THE NORTHWEST, A SUBTROPICAL RIDGE (STR) LOCATED TO THE EAST, AND A SUBTROPICAL RIDGE LOCATED TO THE SOUTH. TC 09P IS FORECAST TO TRACK SOUTHEASTWARD THROUGH TAU 12 AT WHICH TIME THE STR TO THE SOUTH TAKES OVER AS THE PRIMARY STEERING FEATURE AND THE SYSTEM RECURVES TO THE SOUTHWEST. BY TAU 36 THE SYSTEM IS FORECAST TO TRACK DUE WEST THROUGH TAU 72 WHEN IT CROSSES THE RIDGE AXIS AND TURNS BACK TO THE SOUTHWEST. THE SYSTEM IS FORECAST TO STEADILY INTENSIFY UNDER FAVORABLE CONDITIONS, REACHING A PEAK OF 80 KNOTS AROUND TAU 72 BEFORE BEGINNING A GRADUAL WEAKENING TREND AROUND TAU 120. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN STRONG AGREEMENT LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVEHEIGHT AT 100000Z IS 16 FEET. NEXT WARNINGS AT 100900Z, 101500Z, 102100Z AND 110300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#6
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 007
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 101200Z --- NEAR 18.2S 168.5W MOVEMENT PAST SIX HOURS - 160 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 135 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT REPEAT POSIT: 18.2S 168.5W --- FORECASTS: 12 HRS, VALID AT: 110000Z --- 20.2S 169.0W MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 240 DEG/ 10 KTS --- 24 HRS, VALID AT: 111200Z --- 21.2S 170.8W MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 260 DEG/ 12 KTS --- 36 HRS, VALID AT: 120000Z --- 21.5S 173.4W MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 121200Z --- 21.4S 176.0W MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 270 DEG/ 10 KTS --- 72 HRS, VALID AT: 131200Z --- 21.5S 179.5E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 245 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 141200Z --- 23.0S 175.8E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 240 DEG/ 09 KTS --- 120 HRS, VALID AT: 151200Z --- 24.9S 172.3E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT --- REMARKS: 101500Z POSITION NEAR 18.7S 168.6W. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 96 NM NORTHEAST OF NIUE, HAS TRACKED SOUTH-SOUTHEASTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. ANIMATED EIR SATELLITE IMAGERY SHOWS THE CENTRAL CONVECTION HAS DEEPENED BUT REMAINS DISPLACED SLIGHTLY EASTWARD OF AND OBSCURES THE LLC. THE INITIAL POSITION IS BASED ON A DEVELOPING MICROWAVE EYE IN A 100850Z AMSU PASS. THE INITIAL INTENSITY OF 55 KNOTS IS BASED ON CONGRUENT DVORAK ESTIMATES OF T3.5 FROM PGTW AND KNES. UPPER LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH MODERATE (15-20 KNOT) WESTERLY VWS THAT IS OFFSET BY GOOD EQUATORWARD OUTFLOW. THIS IS, HOWEVER, TEMPERED BY SUBSIDENCE ALONG THE WESTERN FLANK CAUSED BY A MIDLATITUDE TROUGH DIGGING IN FROM THE SOUTHWEST, ALSO EVIDENT ON THE EIR ANIMATION. TC 09P IS TRACKING OVER WARM (29-30 CELSIUS) SSTS. THE CYCLONE IS CURRENTLY BEING STEERED BY THE NER EXTENSION TO THE EAST. HOWEVER, AFTER TAU 06, A BUILDING STR TO THE SOUTH WILL ASSUME STEERING AND DRIVE THE SYSTEM WESTWARD. THE SYSTEM IS FORECAST TO STEADILY INTENSIFY UNDER THE AFOREMENTIONED FAVORABLE CONDITIONS, PEAKING AT 80 KNOTS AROUND TAU 72-96 BEFORE GRADUALLY WEAKENING DUE TO INCREASING VWS. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN STRONG AGREEMENT LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK MAXIMUM SIGNIFICANT WAVE HEIGHT AT 101200Z IS 22 FEET. NEXT WARNINGS AT 102100Z, 110300Z, 110900Z AND 111500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#7
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 009
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 110000Z --- NEAR 20.5S 168.3W MOVEMENT PAST SIX HOURS - 175 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 185 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT REPEAT POSIT: 20.5S 168.3W --- FORECASTS: 12 HRS, VALID AT: 111200Z --- 21.6S 169.7W MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 010 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 260 DEG/ 12 KTS --- 24 HRS, VALID AT: 120000Z --- 22.0S 172.2W MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 270 DEG/ 12 KTS --- 36 HRS, VALID AT: 121200Z --- 21.9S 174.8W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 010 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 130000Z --- 21.8S 177.4W MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 260 DEG/ 09 KTS --- 72 HRS, VALID AT: 140000Z --- 22.3S 178.6E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 245 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 150000Z --- 23.8S 175.1E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 240 DEG/ 09 KTS --- 120 HRS, VALID AT: 160000Z --- 25.7S 171.5E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT --- REMARKS: 110300Z POSITION NEAR 20.8S 168.6W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 123 NM SOUTHEAST OF NIUE, HAS TRACKED SOUTHWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED MULTISPECTRAL SATELLITE IMAGERY SHOWS DEEP CONVECTION OCCLUDING THE LOW LEVEL CIRCULATION CENTER (LLCC) WITH CENTRAL DIMPLE FEATURE BELIEVED TO BE A FORMATIVE EYE. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE BASED ON THE DIMPLE AND A NOTCH FEATURE IN A 102042Z 89GHZ METOP-A AMSU MICROWAVE IMAGE. THE INITIAL INTENSITY OF 85 KNOTS IS HEDGED BELOW MULTI- AGNECY DVORAK CURRENT INTENSITY ESTIMATES OF T5.0 (90 KNOTS) FROM PGTW AND KNES. THE INITIAL INTENSITY IS HEDGED ABOVE A RECENT SATCON ESTIMATE OF 73 KNOTS. ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF LOW TO MODERATE (15-20 KNOT) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES. THE SYSTEM HAS CONTINUED TO INTENSIFY OVER THE PAST SIX HOURS, THOUGH THE RATE OF INTENSIFICATION HAS BECOME MORE GRADUAL DUE TO SUBSIDENCE CAUSED BY A MID-LATITUDE TROUGH LOCATED TO THE SOUTHWEST. TC 09P IS CURRENTLY UNDER THE STEERING INFLUENCE OF THE NEAR EQUATORIAL RIDGE (NER) LOCATED TO THE NORTH EAST. PRIOR TO TAU 12, THE PRIMARY STEERING FEATURE WILL SOON BECOME THE SUB TROPICAL RIDGE TO THE SOUTH WHICH WILL CAUSE THE SYSTEM TO TRACK TO THE WEST. THE SYSTEM IS FORECAST TO CONTINUE TO STEADILY INTENSIFY UNDER FAVORABLE CONDITIONS, PEAKING AT 110 KNOTS AROUND TAU 72 BEFORE STARTING A WEAKENING TREND AS VWS INCREASES. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 110000Z IS 26 FEET. NEXT WARNINGS AT 110900Z, 111500Z, 112100Z AND 120300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 010
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 110600Z --- NEAR 20.9S 168.9W MOVEMENT PAST SIX HOURS - 235 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT REPEAT POSIT: 20.9S 168.9W --- FORECASTS: 12 HRS, VALID AT: 111800Z --- 21.4S 171.0W MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 12 KTS --- 24 HRS, VALID AT: 120600Z --- 21.4S 173.6W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 275 DEG/ 13 KTS --- 36 HRS, VALID AT: 121800Z --- 21.1S 176.3W MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 255 NM SOUTHEAST QUADRANT 215 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 275 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 130600Z --- 20.8S 178.8W MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 220 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 260 DEG/ 09 KTS --- 72 HRS, VALID AT: 140600Z --- 21.4S 177.6E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 240 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 150600Z --- 23.1S 174.2E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 225 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 235 DEG/ 09 KTS --- 120 HRS, VALID AT: 160600Z --- 25.1S 170.8E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 245 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT --- REMARKS: 110900Z POSITION NEAR 21.0S 169.4W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 122 NM SOUTH- SOUTHEAST OF NIUE, HAS TRACKED SOUTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED MULTISPECTRAL SATELLITE IMAGERY SHOWS DEEP CONVECTION OCCLUDING THE LOW LEVEL CIRCULATION CENTER (LLCC) WITH A CENTRAL DIMPLE FEATURE, PRECURSOR TO A FORMATIVE EYE. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE BASED ON THE DIMPLE AND A NASCENT MICROWAVE EYE FEATURE IN A 110250Z SSMIS 91 GHZ MICROWAVE IMAGE AND 110251Z GMI 37 GHZ MICROWAVE IMAGE. THE INITIAL INTENSITY OF 90 KNOTS IS IN CONCURRENCE WITH MULTI-AGENCY DVORAK ESTIMATES OF T5.0 FROM PGTW AND KNES, AND A 110000Z SATCON ESTIMATE OF 88 KTS. ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE TO STRONG (20-25 KNOT) VERTICAL WIND SHEAR (VWS) AND IS SUPPORTED BY WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES AND POLEWARD OUTFLOW. THE SYSTEM HAS CONTINUED TO INTENSIFY OVER THE PAST SIX HOURS, THOUGH THE RATE OF INTENSIFICATION HAS BECOME MORE GRADUAL DUE TO SUBSIDENCE CAUSED BY A MID-LATITUDE TROUGH LOCATED TO THE SOUTHWEST AND HIGHER VWS IN THE AREA. TC 09P IS CURRENTLY UNDER THE STEERING INFLUENCE OF THE NEAR EQUATORIAL RIDGE (NER) LOCATED TO THE NORTH EAST. A SUBTROPICAL RIDGE (STR) TO THE SOUTH IS BUILDING, AND HAS ALREADY CAUSED 09P TO TURN WESTWARD. TC 09P WILL TRACK WESTWARD ALONG THE NORTHERN BOUNDARY OF THE STR BEFORE TURNING SOUTHWESTWARD AFTER TAU 90, AS THE STR ERODES TO THE EAST. THE SYSTEM IS FORECAST TO CONTINUE TO STEADILY INTENSIFY UNDER FAVORABLE CONDITIONS, PEAKING AT 105 KNOTS AROUND TAU 72 BEFORE STARTING A WEAKENING TREND AS VWS INCREASES AND TC 09P BEGINS TO TRACK MORE POLEWARD TOWARDS LOWER SSTS IN LATER TAUS. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 110600Z IS 30 FEET. NEXT WARNINGS AT 111500Z, 112100Z, 120300Z AND 120900Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#9
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 011
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 111200Z --- NEAR 21.4S 170.2W MOVEMENT PAST SIX HOURS - 245 DEGREES AT 13 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT REPEAT POSIT: 21.4S 170.2W --- FORECASTS: 12 HRS, VALID AT: 120000Z --- 21.6S 172.6W MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 275 DEG/ 12 KTS --- 24 HRS, VALID AT: 121200Z --- 21.3S 175.2W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 270 DEG/ 12 KTS --- 36 HRS, VALID AT: 130000Z --- 21.2S 177.7W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 255 NM SOUTHEAST QUADRANT 215 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 131200Z --- 21.2S 179.9W MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 250 NM SOUTHEAST QUADRANT 220 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 255 DEG/ 09 KTS --- 72 HRS, VALID AT: 141200Z --- 22.0S 176.5E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 240 DEG/ 08 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 151200Z --- 23.5S 173.3E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 225 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 235 DEG/ 09 KTS --- 120 HRS, VALID AT: 161200Z --- 25.6S 170.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 245 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT --- REMARKS: 111500Z POSITION NEAR 21.5S 170.8W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 139 NM SOUTH OF NIUE, HAS TRACKED WEST-SOUTHWESTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE IMAGERY OVER THE LAST 6 HOURS SHOWED A TEMPORARY EYE THAT WAS ONCE AGAIN SUBSUMED INTO DEEP CONVECTION. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE BASED ON A WARMER NOTCH FEATURE IN THE INFRARED IMAGERY AND A 110911Z AMSU 89 GHZ MICROWAVE IMAGE. THE INITIAL INTENSITY OF 90 KNOTS IS IN CONCURRENCE WITH THE PGTW 1200 FIX OF T5.0, AND SLIGHTLY ABOVE THE KNES FIX OF T4.5. ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE TO STRONG (20-25 KNOT) VERTICAL WIND SHEAR (VWS), BUT IS SUPPORTED BY WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES AND MODERATE OUTFLOW. SUBSIDENCE CAUSED BY A MID-LATITUDE TROUGH LOCATED TO THE SOUTHWEST AND HIGHER VWS IN THE AREA HAVE STIFLED DEVELOPMENT IN THE PAST 6 HOURS. TC 09P IS CURRENTLY UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) TO THE SOUTH, AND IS TRACKING WESTWARD ALONG THE NORTHERN BOUNDARY OF THE STR. TC 09P WILL TURN SOUTHWESTWARD AFTER TAU 90, AS THE STR ERODES TO THE EAST. THE SYSTEM IS FORECAST TO CONTINUE TO STEADILY INTENSIFY UNDER FAVORABLE CONDITIONS, PEAKING AT 100 KNOTS AROUND TAU 48 BEFORE STARTING A WEAKENING TREND AS VWS INCREASES AND TC 09P BEGINS TO TRACK MORE POLEWARD TOWARDS LOWER SSTS IN LATER TAUS. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT UNTIL LATER TAUS, LENDING HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. NUMERICAL MODELS BEGIN TO DIVERGE IN THE TIMING AND DEGREE OF THE POLEWARD TURN, OCCURING SOMETIME AFTER TAU 96. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111200Z IS 30 FEET. NEXT WARNINGS AT 112100Z, 120300Z, 120900Z, AND 121500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#10
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 012
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 111800Z --- NEAR 21.7S 171.5W MOVEMENT PAST SIX HOURS - 255 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 135 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 21.7S 171.5W --- FORECASTS: 12 HRS, VALID AT: 120600Z --- 21.5S 174.0W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 205 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 275 DEG/ 13 KTS --- 24 HRS, VALID AT: 121800Z --- 21.2S 176.7W MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 275 DEG/ 12 KTS --- 36 HRS, VALID AT: 130600Z --- 21.0S 179.2W MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 225 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 131800Z --- 21.0S 178.7E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 260 DEG/ 08 KTS --- 72 HRS, VALID AT: 141800Z --- 21.6S 175.5E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 065 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 200 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 245 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 151800Z --- 23.0S 171.9E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 065 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 220 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 165 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 230 DEG/ 10 KTS --- 120 HRS, VALID AT: 161800Z --- 25.4S 168.6E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 185 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 200 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT --- REMARKS: 112100Z POSITION NEAR 21.6S 172.1W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 180 NM SOUTH- SOUTHWEST OF NIUE, HAS TRACKED WEST-SOUTHWESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A SMALL PERSISTENT EYE FEATURE SURROUNDED BY DEEP CONVECTION THAT IS OCCLUDING A LOW LEVEL CIRCULATION CENTER. THE INITIAL POSITION IS PLACED WITH FAIR CONFIDENCE BASED ON THE EYE FEATURE AND IS SUPPORTED BY AN 111801Z 91GHZ SSMIS. THE AFOREMENTIONED MICROWAVE IMAGE SHOWS A CLEARLY DEFINED 15NM WIDE MICROWAVE EYE WITH DEEP CONVECTION IN THE NORTHERN SEMI-CIRCLE. THE INITIAL INTENSITY OF 95 KNOTS IS HEDGED SLIGHTLY BELOW MULTI-AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T5.0 TO T6.5 (90-115 KNOTS) FROM KNES AND PGTW RESPECTIVELY. ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE (15-20 KNOT) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS SHOWS THAT THE SYSTEM HAS MODERATE OUTFLOW PREDOMINANTLY ON THE EQUATORWARD SIDE. TC GITA IS STILL UNDER THE INFLUENCE OF SUBSIDENCE CAUSED BY A MID-LATITUDE TROUGH LOCATED TO THE SOUTHWEST THAT IS LIMITING INTENSIFICATION. THE CYCLONE IS CURRENTLY TRACKING WESTWARD UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) TO THE SOUTH. TC 09P WILL CONTINUE TO TRACK TO THE WEST UNTIL AFTER TAU 48 AT WHICH TIME IT WILL TURN SOUTHWEST AS IT ROUNDS THE NORTHWESTERN PERIPHERY OF THE STR. THE SYSTEM IS FORECAST TO CONTINUE TO INTENSIFY UNDER FAVORABLE CONDITIONS, PEAKING AT 105 KNOTS AROUND TAU 24 BEFORE STARTING A WEAKENING TREND DUE TO INCREASING VWS. TC 09P BEGINS TO TRACK MORE POLEWARD TOWARDS LOWER SSTS IN LATER TAUS. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT UNTIL LATER TAUS WHEN THE MODELS BEGIN TO VARY IN THE SHARPNESS OF THE TURN TO THE SOUTHWEST. DESPITE THE VARIATIONS IN THE LATER TAUS, THERE IS OVERALL HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 111800Z IS 32 FEET. NEXT WARNINGS AT 120300Z, 120900Z, 121500Z AND 122100Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#11
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 013
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 120000Z --- NEAR 21.8S 172.6W MOVEMENT PAST SIX HOURS - 265 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT REPEAT POSIT: 21.8S 172.6W --- FORECASTS: 12 HRS, VALID AT: 121200Z --- 21.5S 175.2W MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 200 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 275 DEG/ 13 KTS --- 24 HRS, VALID AT: 130000Z --- 21.2S 177.9W MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 275 DEG/ 10 KTS --- 36 HRS, VALID AT: 131200Z --- 21.1S 180.0E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 265 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 140000Z --- 21.3S 178.0E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 255 DEG/ 08 KTS --- 72 HRS, VALID AT: 150000Z --- 22.2S 174.8E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 245 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 160000Z --- 23.8S 171.1E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 230 DEG/ 09 KTS --- 120 HRS, VALID AT: 170000Z --- 26.2S 167.9E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT --- REMARKS: 120300Z POSITION NEAR 21.7S 173.2W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 222 NM SOUTHWEST OF NIUE, HAS TRACKED WESTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED MUTLI-SPECTRAL SATELLITE IMAGERY DEPICTS A WELL DEFINED CLOUD FILLED EYE FEATURE SURROUNDED BY DEEP CONVECTION THAT IS OBSCURING A LOW LEVEL CIRCULATION CENTER. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EYE FEATURE AND IS SUPPORTED BY AN 112023Z 89GHZ AMSU MICROWAVE IMAGE. THE AMSU IMAGE SHOWS A CLEARLY DEFINED 25NM WIDE MICROWAVE EYE WITH DEEP CONVECTION PREDOMINANTLY IN THE NORTHERN SEMI-CIRCLE. THE INITIAL INTENSITY OF 110 KNOTS IS HEDGED SLIGHTLY BELOW MULTI-AGENCY DVORAK CURRENT INTENSITY ESTIMATES OF T6.0 (115 KNOTS) FROM KNES AND PGTW. ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE (15-25 KNOT)VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS SHOWS THAT THE SYSTEM HAS MODERATE POLEWARD OUTFLOW AND SLIGHTLY STRONGER EQUATORWARD OUTFLOW. TC GITA IS REMAINS UNDER THE INFLUENCE OF SUBSIDENCE CAUSED BY A MID-LATITUDE TROUGH LOCATED TO THE WEST THAT HAS BEEN LIMITING INTENSIFICATION. THE CYCLONE IS CURRENTLY TRACKING WESTWARD UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) TO THE SOUTH. TC 09P WILL CONTINUE TO TRACK TO THE WEST THROUGH TAU 36 AT WHICH POINT IT WILL BEGIN TO ROUND THE NORTHWESTERN PERIPHERY OF THE STR AND TRACK TO THE SOUTHWEST. THE SYSTEM IS FORECAST TO CONTINUE TO INTENSIFY UNDER FAVORABLE CONDITIONS THROUGH TAU 24, PEAKING AT 115 KNOTS. AFTER TAU 24 THE SYSTEM WILL BEGIN A WEAKENING TREND THAT WILL CONTINUE FOR THE DURATION OF THE FORECAST. INITIALLY, THE WEAKENING TREND WILL BE DUE TO INCREASING VWS, AND IN THE LATER TAUS, THE SYSTEM WILL ALSO TRACK INTO COOLER (<26 CELSIUS) SEA SURFACE TEMPERATURES. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT THROUGH TAU 48. AFTER TAU 48, THE MODELS BEGIN TO VARY IN THE SHARPNESS OF THE TURN TO THE SOUTHWEST. THE PRICIPLE OUTLIERS, NAVGEM AND COAMPS, TURN SHARPER THAN THE OTHER MODELS. DESPITE THE VARIATIONS IN THE LATER TAUS, THE JTWC TRACK FORECAST IS PLACED NEAR THE MUTLI-MODEL CONSENSUSIS WITH OVERALL HIGH CONFIDENCE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 120000Z IS 34 FEET. NEXT WARNINGS AT 120900Z, 121500Z, 122100Z AND 130300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#12
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 015
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 121200Z --- NEAR 21.5S 175.5W MOVEMENT PAST SIX HOURS - 285 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 015 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT REPEAT POSIT: 21.5S 175.5W --- FORECASTS: 12 HRS, VALID AT: 130000Z --- 21.1S 178.0W MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 10 KTS --- 24 HRS, VALID AT: 131200Z --- 21.1S 179.8E MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 265 DEG/ 09 KTS --- 36 HRS, VALID AT: 140000Z --- 21.3S 177.8E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 260 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 141200Z --- 21.6S 176.0E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 135 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 255 DEG/ 09 KTS --- 72 HRS, VALID AT: 151200Z --- 22.6S 172.4E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 240 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 161200Z --- 24.5S 169.0E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 155 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 225 DEG/ 07 KTS --- 120 HRS, VALID AT: 171200Z --- 26.6S 166.8E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT --- REMARKS: 121500Z POSITION NEAR 21.4S 176.1W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 346 NM WEST- SOUTHWEST OF NIUE, HAS TRACKED WEST-NORTHWESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY (EIR) DEPICTS AN EYE SURROUNDED BY DEEP CONVECTION. A 120948Z AMSU 89GHZ IMAGE SHOWS A 10 NM WIDE MICROWAVE EYE AND THE MAJORITY OF DEEP CONVECTION LOCATED TO THE NORTH OF THE EYE. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EIR EYE AND IS SUPPORTED BY THE AFOREMENTIONED 120948Z 89GHZ MICROWAVE IMAGE. THE INITIAL INTENSITY OF 125 KNOTS IS IN CONCURRENCE WITH MULTI-AGENCY DVORAK CURRENT INTENSITY ESTIMATES OF T6.5 (127 KNOTS) FROM KNES AND PGTW AND ABOVE A 120638Z SATCON ESTIMATE OF 114 KTS. UPPER LEVEL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE TO STRONG (20-25 KNOT) VERTICAL WIND SHEAR (VWS) AND TC GITA REMAINS UNDER THE INFLUENCE OF SUBSIDENCE CAUSED BY A MID- LATITUDE TROUGH LOCATED TO THE WEST THAT HAS BEEN LIMITING INTENSIFICATION. HOWEVER, THE SYSTEM HAS MODERATE POLEWARD OUTFLOW AND STRONGER EQUATORWARD OUTFLOW. THIS, IN ADDITION TO WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES, IS CURRENTLY OFFSETTING THE NEGATIVE EFFECTS OF VWS AND SUBSIDENCE. THE CYCLONE IS CURRENTLY TRACKING WESTWARD UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) TO THE SOUTH. TC 09P WILL CONTINUE TO TRACK TO THE WEST THROUGH TAU 36 AFTER WHICH IT WILL BEGIN TO ROUND THE NORTHWESTERN PERIPHERY OF THE STR AND TRACK TO THE SOUTHWEST. THE SYSTEM HAS PLATEAUED AT 125 KTS, AND IS FORECAST TO BEGIN A WEAKENING TREND. INITIALLY, THE WEAKENING TREND WILL BE DUE TO INCREASING VWS, AND IN THE LATER TAUS, THE SYSTEM WILL ALSO TRACK INTO COOLER (<26 CELSIUS) SEA SURFACE TEMPERATURES. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT THROUGH TAU 48. NUMERICAL MODELS HAVE CONSOLIDATED IN THEIR FORECAST OF THE SOUTHWESTERLY TURN, WITH THE EXCEPTION OF NAVGEM, WHICH CURVES SOONER AND MORE TIGHTLY THAN THE OTHERS. DESPITE THE VARIATIONS IN THE LATER TAUS, THE JTWC TRACK FORECAST IS PLACED NEAR THE MULTI-MODEL CONSENSUS WITH OVERALL HIGH CONFIDENCE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 121200Z IS 33 FEET. NEXT WARNINGS AT 122100Z, 130300Z, 130900Z AND 131500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#13
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 017
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 130000Z --- NEAR 21.2S 178.4W MOVEMENT PAST SIX HOURS - 275 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT REPEAT POSIT: 21.2S 178.4W --- FORECASTS: 12 HRS, VALID AT: 131200Z --- 21.0S 179.5E MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 265 DEG/ 07 KTS --- 24 HRS, VALID AT: 140000Z --- 21.1S 177.9E MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 260 DEG/ 08 KTS --- 36 HRS, VALID AT: 141200Z --- 21.4S 176.3E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 255 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 150000Z --- 21.8S 174.6E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 250 DEG/ 09 KTS --- 72 HRS, VALID AT: 160000Z --- 23.1S 170.9E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 230 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 170000Z --- 25.4S 167.7E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 210 DEG/ 09 KTS --- 120 HRS, VALID AT: 180000Z --- 28.5S 165.6E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT --- REMARKS: 130300Z POSITION NEAR 21.1S 178.9W. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 259 NM SOUTHEAST OF SUVA, FIJI, HAS TRACKED WESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS A SMALL (LESS THAN 10 NM DIAMETER) RAGGED EYE SURROUNDED BY A DEEP CONVECTIVE EYEWALL THAT HAS MAINTAINED CONSISTENT STRUCTURE WITH SLIGHTLY WARMING CLOUD TOP TEMPERATURES OVER THE PAST 6 HOURS. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON ANIMATED EIR AND MULTISPECTRAL IMAGERY CONFIRMING A SMALL CLOUD-FILLED EYE FEATURE. A 122059Z METOP-B MHS 89 GHZ MICROWAVE SATELLITE IMAGE SUPPORTS THIS POSITION AND SHOWS A DEFINED CONVECTIVE STRUCTURE WITH SOME EROSION ON THE EASTERN SIDE AND A BROADER AREA OF DEEP CONVECTION IN THE NORTHWESTERN SEMI- CIRCLE. THE INITIAL INTENSITY OF 120 KNOTS IS BASED ON A SLIGHT WEAKENING IN OBSERVED CONVECTIVE STRUCTURE IN CONCURRENCE WITH MULTI- AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T6.0 AND T6.5 (115 TO 127 KNOTS) AS WELL AS A 122058Z SATCON ESTIMATE OF 116 KNOTS. UPPER LEVEL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF MODERATE TO STRONG (20-30 KNOT) VERTICAL WIND SHEAR (VWS) OFFSET BY STRONG POLEWARD AND EQUATORWARD OUTFLOW, PARTICULARLY OVER THE NORTHWESTERN SEMI-CIRCLE. THE CYCLONE IS CURRENTLY TRACKING WESTWARD UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE (STR) TO THE SOUTH. TC 09P WILL CONTINUE TO TRACK TO THE WEST THROUGH TAU 24 AFTER WHICH IT WILL BEGIN TO ROUND THE NORTHWESTERN PERIPHERY OF THE STR AND TRACK TO THE SOUTHWEST. THE SYSTEM HAS PLATEAUED, AND IS FORECAST TO CONTINUE ON A GRADUAL WEAKENING TREND DUE TO THE SLIGHTLY INCREASING SHEAR ENVIRONMENT. IN THE LATER TAUS, THE SYSTEM WILL TRACK INTO COOLER (LESS THAN 26 CELSIUS) SEA SURFACE TEMPERATURES AND SPIN DOWN MORE QUICKLY. AVAILABLE DYNAMIC MODEL GUIDANCE IS IN TIGHT AGREEMENT THROUGH TAU 48. NUMERICAL MODELS HAVE CONTINUED TO CONSOLIDATE IN THEIR FORECAST OF THE SOUTHWESTWARD TURN. DESPITE SOME VARIATION IN THE LATER TAUS, THE JTWC TRACK FORECAST IS PLACED NEAR THE MULTI-MODEL CONSENSUS WITH OVERALL HIGH CONFIDENCE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 130000Z IS 33 FEET. NEXT WARNINGS AT 130900Z, 131500Z, 132100Z AND 140300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#14
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 018
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 130600Z --- NEAR 21.0S 179.5W MOVEMENT PAST SIX HOURS - 280 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT REPEAT POSIT: 21.0S 179.5W --- FORECASTS: 12 HRS, VALID AT: 131800Z --- 21.0S 178.7E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 265 DEG/ 08 KTS --- 24 HRS, VALID AT: 140600Z --- 21.2S 176.9E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 255 DEG/ 08 KTS --- 36 HRS, VALID AT: 141800Z --- 21.6S 175.3E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 255 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 150600Z --- 22.0S 173.5E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 240 DEG/ 10 KTS --- 72 HRS, VALID AT: 160600Z --- 23.8S 169.7E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 225 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 170600Z --- 26.4S 166.8E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 200 DEG/ 10 KTS --- 120 HRS, VALID AT: 180600Z --- 30.1S 165.1E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 130900Z POSITION NEAR 21.0S 180.0E. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 211 NM SOUTHEAST OF SUVA, FIJI, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A WELL ORGANIZED AND SYMMETRIC TROPICAL CYCLONE WITH AN EYE FEATURE. THE INITIAL POSITION IS BASED ON A 130557Z 37GHZ SSMIS MICROWAVE IMAGE WHICH SHOWS THE MICROWAVE EYE FEATURE. THE INITIAL INTENSITY OF 115 KNOTS IS BASED ON DVORAK CURRENT INTENSITY (CI) ESTIMATES OF T6.0 (115 KNOTS) FROM BOTH PGTW AND KNES. UPPER LEVEL ANALYSIS SHOWS MODERATE TO UNFAVORABLE VERTICAL WIND SHEAR (VWS), RANGING FROM 25 TO 30 KNOTS. THE VWS IS OFFSET BY A STRONG POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES REMAIN FAVORABLE BETWEEN 28 AND 29 DEGREES CELSIUS. TC 09P IS BEING STEERED WESTWARD BY THE SUBTROPICAL RIDGE (STR) LOCATED TO THE SOUTH. THE STR WILL CONTINUE TO STEER TC 09P GENERALLY WESTWARD THROUGH TAU 48. AFTER TAU 48, TC 09P WILL BEGIN TO ROUND THE NORTHWESTERN EDGE OF THE STR AND BEGIN TO TRACK TOWARDS THE SOUTHWEST BEFORE EVENTUALLY TRACKING SOUTHWARD BY TAU 120. AS TC 09P CONTINUES TRACKING WESTWARD AND THEN SOUTHWARD IT WILL MOVE OVER COOLER WATER WHICH WILL ALLOW IT TO DECREASE IN INTENSITY AT A RELATIVELY STEADY RATE THROUGH TAU 48. INCREASING VWS WILL ALSO HELP DECREASE TC 09P IN INTENSITY TO 95 KNOTS BY TAU 48 AND TO 50 KNOTS BY TAU 120. DYNAMIC MODEL GUIDANCE IS IN GOOD AGREEMENT. THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 130600Z IS 31 FEET. NEXT WARNINGS AT 131500Z, 132100Z, 140300Z AND 140900Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#15
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 021
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 140000Z --- NEAR 21.1S 177.7E MOVEMENT PAST SIX HOURS - 265 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT REPEAT POSIT: 21.1S 177.7E --- FORECASTS: 12 HRS, VALID AT: 141200Z --- 21.3S 176.0E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 255 DEG/ 08 KTS --- 24 HRS, VALID AT: 150000Z --- 21.7S 174.3E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 255 DEG/ 09 KTS --- 36 HRS, VALID AT: 151200Z --- 22.2S 172.4E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 250 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 160000Z --- 22.9S 170.2E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 090 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 235 DEG/ 10 KTS --- 72 HRS, VALID AT: 170000Z --- 25.1S 166.6E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 215 DEG/ 09 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 180000Z --- 28.2S 164.2E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 170 DEG/ 12 KTS --- 120 HRS, VALID AT: 190000Z --- 33.1S 165.2E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 205 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 160 NM NORTHWEST QUADRANT --- REMARKS: 140300Z POSITION NEAR 21.1S 177.3E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 184 NM SOUTH- SOUTHWEST OF SUVA, FIJI, HAS TRACKED WESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED IMAGERY DEPICTS A HIGHLY SYMMETRICAL SYSTEM WITH A 25NM EYE. THERE IS HIGH CONFIDENCE IN THE INITIAL POSITION BASED ON THE EVIDENT EYE FEATURE IN SATELLITE IMAGERY. THE INITIAL INTENSITY IS ASSESSED AT 115 KNOTS WHICH IS ON THE LOWER END OF SUBJECTIVE AND OBJECTIVE DVORAK ESTIMATES RANGING FROM T6.0 TO T6.5 (115 TO 127 KNOTS). ENVIRONMENTAL CONDITIONS ARE CURRENTLY VERY SUPPORTIVE WITH A POINT SOURCE LOCATED OVER THE CENTER FEEDING POLEWARD INTO THE MID- LATITUDE WESTERLIES. SSTS ARE ALSO VERY WARM NEAR 28 CELSIUS. TC 09S IS TRACKING WESTWARD ALONG THE NORTHERN PERIPHERY OF A DEEP- LAYERED SUBTROPICAL RIDGE (STR). THE WELL ESTABLISHED RIDGE WILL PERSIST FOR THE DURATION OF THE FORECAST, STEERING TC 09S WEST INITIALLY, THEN GRADUALLY SOUTHWEST BY TAU 48, AND EVENTUALLY DUE SOUTH ROUNDING THE RIDGE AXIS BY TAU 120. THE ENVIRONMENT IS FORECAST TO REMAIN FAVORABLE IN THE NEAR TERM SUPPORTING ONLY MINOR FLUCTUATIONS IN THE INTENSITY OVER THE NEXT 24 HOURS. AFTER TAU 24 SSTS GRADUALLY TAPER OFF APPROACHING 26 CELSIUS BY TAU 72, AND THE SYSTEM IS FORECAST TO WEAKEN TO APPROXIMATELY 85KTS. BEYOND TAU 72 SSTS DECLINE MUCH MORE RAPIDLY AND THE INTENSITY IS FORECAST TO DROP CONSIDERABLY DURING THIS PERIOD. DYNAMIC MODEL GUIDANCE REMAINS IN VERY GOOD AGREEMENT WITH ESPECIALLY TIGHT GROUPING IN THE EARLY TAUS AND ONLY MARGINAL SEPARATION IN THE LATER TAUS. OVERALL THERE IS HIGH CONFIDENCE IN THE FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 140000Z IS 32 FEET. NEXT WARNINGS AT 140900Z, 141500Z, 142100Z AND 150300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#16
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 024
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 141800Z --- NEAR 21.5S 175.3E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 135 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT REPEAT POSIT: 21.5S 175.3E --- FORECASTS: 12 HRS, VALID AT: 150600Z --- 21.9S 173.5E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 255 DEG/ 10 KTS --- 24 HRS, VALID AT: 151800Z --- 22.4S 171.5E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 240 DEG/ 10 KTS --- 36 HRS, VALID AT: 160600Z --- 23.4S 169.6E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 235 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 161800Z --- 24.6S 167.7E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 215 DEG/ 10 KTS --- 72 HRS, VALID AT: 171800Z --- 27.6S 165.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 185 DEG/ 10 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 181800Z --- 31.6S 164.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 185 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 140 DEG/ 17 KTS --- 120 HRS, VALID AT: 191800Z --- 36.5S 170.4E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 205 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT --- REMARKS: 142100Z POSITION NEAR 21.6S 174.8E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 269 NM SOUTHWEST OF SUVA, FIJI, HAS TRACKED WESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A WELL DEFINED 30 NM EYE COMPLETELY SURROUNDED BY DEEP CONVECTION. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EYE FEATURE IN THE ANIMATED INFRARED LOOP AND A 141626Z 89 GHZ MICROWAVE IMAGE WITH A CLEARLY DEFINED MICROWAVE EYE. THE AFOREMENTIONED MICROWAVE IMAGE SHOWS CONVECTION ENCIRCLING THE MICROWAVE EYE WITH SLIGHTLY MORE DEEP CONVECTION IN THE SOUTHERN SEMI-CIRCLE. THE INITIAL INTENSITY OF 105 KNOTS IS BASED ON THE LOWER END OF AGENCY DVORAK ESTIMATES RANGING FROM T5.5 (102 KNOTS) FROM KNES AND NFFN TO T6.0 (115 KNOTS) FROM PGTW. ENVIRONMENTAL ANALYSIS REVEALS THE SYSTEM IS IN AN AREA OF MODERATE TO HIGH (20-25 KNOTS) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH AN AREA OF WARM (28 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS SHOWS THE SYSTEM HAS A POINT SOURCE ALOFT AND STRONG RADIAL OUTFLOW. TC 09P IS CURRENTLY TRACKING WEST-SOUTHWEST ALONG THE NORTHWESTERN PERIPHERY OF A DEEP-LAYERED STR LOCATED TO THE SOUTHEAST. TC 09P WILL GRADUALLY TURN MORE SOUTHWESTWARD THROUGH TAU 72 AS IT CONTINUES TO ROUND THE RIDGE. AFTER TAU 72 THE SYSTEM WILL CROSS THE RIDGE AXIS AND TRACK TO THE SOUTHEAST FOR THE DURATION OF THE FORECAST PERIOD. VWS IS FORECAST TO CONTINUE TO GRADUALLY INCREASE AS THE UPPER LEVEL WINDS BECOME OUT-OF-PHASE WITH STORM MOTION. CONCURRENTLY WITH INCREASING VWS, ALONG-TRACK SSTS WILL COOL AS THE CYCLONE TRACKS POLEWARD OF 25S. DUE TO THE INCREASINGLY UNFAVORABLE ENVIRONMENT, TC GITA WILL STEADILY WEAKEN TO 55 KNOTS BY TAU 120 AS IT APPROACHES NEW ZEALAND. AFTER TAU 96, THE SYSTEM WILL BEGIN EXTRA- TROPICAL TRANSITION AS IT ENTERS THE BAROCLINIC ZONE. DYNAMIC MODEL GUIDANCE REMAINS IN TIGHT AGREEMENT LEADING OVERALL HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 141800Z IS 34 FEET. NEXT WARNINGS AT 150300Z, 150900Z, 151500Z AND 152100Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#17
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 025
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 150000Z --- NEAR 21.5S 174.2E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 145 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT REPEAT POSIT: 21.5S 174.2E --- FORECASTS: 12 HRS, VALID AT: 151200Z --- 22.0S 172.3E MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 250 DEG/ 10 KTS --- 24 HRS, VALID AT: 160000Z --- 22.7S 170.2E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 190 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 240 DEG/ 10 KTS --- 36 HRS, VALID AT: 161200Z --- 23.7S 168.4E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 230 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 170000Z --- 25.0S 166.7E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 085 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 215 DEG/ 10 KTS --- 72 HRS, VALID AT: 180000Z --- 28.2S 164.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 175 DEG/ 12 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 190000Z --- 33.0S 164.7E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 185 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 135 DEG/ 22 KTS --- 120 HRS, VALID AT: 200000Z --- 39.1S 172.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 105 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 205 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT --- REMARKS: 150300Z POSITION NEAR 21.6S 173.7E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 313 NM SOUTHWEST OF SUVA, FIJI, HAS TRACKED WESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED MULTI-SPECTRAL SATELLITE IMAGERY SHOWS A WELL DEFINED 60 NM EYE COMPLETELY SURROUNDED BY DEEP CONVECTION. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EYE FEATURE IN THE ANIMATED INFRARED LOOP AND A 142200Z METOP-B ASCAT IMAGE. THE AFOREMENTIONED ASCAT IMAGE SHOWS A LARGELY SYMMETRICAL WIND FIELD WITH ONLY SLIGHTLY GREATER EXTENT OF THE 34 KNOT WIND FIELD IN THE SOUTHERN SEMI-CIRCLE. THE INITIAL INTENSITY OF 105 KNOTS IS BASED ON THE LOWER END OF AGENCY DVORAK ESTIMATES RANGING FROM T5.5 (102 KNOTS) FROM PGTW AND NFFN TO T6.0 (115 KNOTS) FROM KNES. ENVIRONMENTAL ANALYSIS REVEALS THE SYSTEM IS IN AN AREA OF MODERATE TO HIGH (15-25 KNOTS) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH AN AREA OF WARM (27-28 CELSIUS) SEA SURFACE TEMPERATURES. UPPER LEVEL ANALYSIS SHOWS THE SYSTEM HAS A POINT SOURCE ALOFT AND STRONG RADIAL OUTFLOW ENHANCED ON THE POLEWARD SIDE BY MID-LATITUDE WESTERLIES. TC 09S IS CURRENTLY TRACKING WEST-SOUTHWEST ALONG THE NORTHWESTERN PERIPHERY OF A DEEP-LAYERED STR LOCATED TO THE SOUTHEAST. TC 09P WILL CONTINUE TO TURN SOUTHWESTWARD THROUGH TAU 72 AS IT CONTINUES TO ROUND THE RIDGE. SHORTLY AFTER TAU 72, THE SYSTEM WILL CROSS THE RIDGE AXIS AND TRACK TO THE SOUTHEAST TOWARD NEW ZEALAND FOR THE DURATION OF THE FORECAST PERIOD. VWS IS FORECAST TO CONTINUE TO GRADUALLY INCREASE WHILE ALONG-TRACK SSTS WILL COOL AS THE CYCLONE TRACKS POLEWARD OF 25S. AS THE ENVIRONMENT SHIFTS TO UNFAVORABLE, TC GITA WILL STEADILY WEAKEN TO 50 KNOTS BY TAU 120. AROUND TAU 72, THE SYSTEM WILL BEGIN EXTRA-TROPICAL TRANSITION AS IT INTERACTS WITH THE BAROCLINIC ZONE. DYNAMIC MODEL GUIDANCE REMAINS IN TIGHT AGREEMENT LEADING OVERALL HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 150000Z IS 33 FEET. NEXT WARNINGS AT 150900Z, 151500Z, 152100Z AND 160300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#18
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 027
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 151200Z --- NEAR 22.3S 172.2E MOVEMENT PAST SIX HOURS - 245 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 020 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT REPEAT POSIT: 22.3S 172.2E --- FORECASTS: 12 HRS, VALID AT: 160000Z --- 23.1S 170.0E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 240 DEG/ 10 KTS --- 24 HRS, VALID AT: 161200Z --- 24.1S 168.2E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 235 DEG/ 09 KTS --- 36 HRS, VALID AT: 170000Z --- 25.2S 166.5E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 220 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 171200Z --- 26.7S 165.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 200 DEG/ 10 KTS --- 72 HRS, VALID AT: 181200Z --- 30.4S 163.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 150 DEG/ 18 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 191200Z --- 36.6S 168.2E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 205 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 135 DEG/ 25 KTS --- 120 HRS, VALID AT: 201200Z --- 43.1S 178.3E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 310 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 260 NM NORTHWEST QUADRANT --- REMARKS: 151500Z POSITION NEAR 22.5S 171.7E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 339 NM EAST OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 12 KNOTS OVER THE PAST SIX HOURS. ANIMATED EIR IMAGERY SHOWS A SYMMETRICAL SYSTEM WITH WARMING CONVECTIVE TOPS BUT WITH A WELL-DEFINED 40 NM EYE. THERE IS HIGH CONFIDENCE IN THE INITIAL POSITION BASED ON THE EYE IN THE EIR LOOP THAT ALSO LINES UP WELL WITH A LOW REFLECTIVITY MICROWAVE EYE FEATURE IN THE 151027Z AMSU-B IMAGE. THE INITIAL INTENSITY OF 100 KNOTS IS BASED ON THE LOW END OF AGENCY DVORAK ESTIMATES RANGING FROM T5.0 TO T6.0 TO REFLECT THE SLIGHT WEAKENING. ENVIRONMENTAL CONDITIONS REMAIN CONDUCIVE WITH A POINT SOURCE ALOFT ENHANCING EXCELLENT RADIAL OUTFLOW. SSTS ARE ALSO VERY WARM AT 28 CELSIUS. TC 09S IS TRACKING ALONG THE NORTHERN PERIPHERY OF A DEEP-LAYERED STR TO THE SOUTH. AFTER TAU 24, TC 09P WILL GRADUALLY TURN SOUTHWESTWARD THEN SOUTHEASTWARD AS IT ROUNDS THE WESTERN EDGE OF THE STR. VWS IS EXPECTED TO STEADILY INCREASE AS THE UPPER LEVEL WINDS BECOME MORE OUT-OF-PHASE WITH STORM MOTION. ADDITIONALLY, ALONG-TRACK SSTS WILL COOL AS THE CYCLONE MOVES POLEWARD. IN VIEW OF THESE DYNAMICS, TC GITA WILL GRADUALLY WEAKEN AND BE REDUCED TO 40 KNOTS BY TAU 120 AFTER IT CROSSES NEW ZEALAND NEAR WELLINGTON. CONCURRENTLY, THE CYCLONE WILL BEGIN EXTRA-TROPICAL TRANSITION BY TAU 72 AS IT ENTERS THE BAROCLINIC ZONE AND BECOMES A GALE-FORCE COLD CORE LOW WITH AN EXPANSIVE WIND FIELD BY TAU 120. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 151200Z IS 30 FEET. NEXT WARNINGS AT 152100Z, 160300Z, 160900Z AND 161500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#19
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 028
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 151800Z --- NEAR 22.6S 171.2E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 180 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT REPEAT POSIT: 22.6S 171.2E --- FORECASTS: 12 HRS, VALID AT: 160600Z --- 23.4S 169.2E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 150 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 235 DEG/ 10 KTS --- 24 HRS, VALID AT: 161800Z --- 24.5S 167.4E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 225 DEG/ 09 KTS --- 36 HRS, VALID AT: 170600Z --- 25.8S 166.0E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 165 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 215 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 171800Z --- 27.3S 164.8E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 190 DEG/ 11 KTS --- 72 HRS, VALID AT: 181800Z --- 31.5S 164.1E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 195 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 145 DEG/ 20 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 191800Z --- 37.7S 170.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 095 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 205 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 130 DEG/ 23 KTS --- 120 HRS, VALID AT: 201800Z --- 43.2S 179.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 270 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 240 NM NORTHWEST QUADRANT --- REMARKS: 152100Z POSITION NEAR 22.8S 170.7E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 285 NM EAST OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A SYMMETRICAL SYSTEM WITH A WELL-DEFINED 40 NM EYE FEATURE. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EYE IN THE ANIMATED LOOP THAT ALSO LINES UP WELL WITH A MICROWAVE EYE FEATURE IN A 151850Z 37GHZ SSMIS MICROWAVE IMAGE. THE INITIAL INTENSITY OF 100 KNOTS IS BASED ON MUTLI-AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T5.0 TO T6.0 (90-115 KNOTS). ENVIRONMENTAL ANALYSIS REVEALS THAT THE SYSTEM IS IN AN AREA OF LOW TO MODERATE (15-20 KNOTS) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH WARM (27-28 CELSIUS) SEA SURFACE TEMPERATURES (SSTS). UPPER LEVEL ANALYSIS SHOWS THAT THE SYSTEM STILL HAS A POINT SOURCE ALOFT WITH EXCELLENT RADIAL OUTFLOW ENHANCED BY THE MID- LATITUDE WESTERLIES IN THE POLEWARD SEMI-CIRCLE. TC 09P IS TRACKING ALONG THE NORTHWESTERN PERIPHERY OF A DEEP-LAYERED SUB-TROPICAL RIDGE LOCATED TO THE SOUTHEAST. THE SYSTEM IS FORECAST TO TRACK GRADUALLY SOUTH, THEN TURN SOUTHEASTWARD AS IT CROSSES THE RIDGE AXIS AROUND TAU 72. STEADILY INCREASING VWS, THE RESULT OF UPPER LEVEL WINDS BECOMING OUT OF PHASE WITH THE STORM MOTION, WILL GRADUALLY WEAKEN THE SYSTEM. ADDITIONALLY, ALONG-TRACK SSTS WILL BECOME UNFAVORABLE (<26 CELSIUS) AS THE CYCLONE TRACKS POLEWARD OF 25S. THE GRADUAL WEAKENING TREND WILL CONTINUE FOR THE DURATION OF THE FORECAST, REDUCING THE SYSTEM TO 45 KNOTS BY TAU 120. TC GITA WILL ALSO BEGIN EXTRA-TROPICAL TRANSITION BY TAU 72 AS IT ENTERS THE BAROCLINIC ZONE, BECOMING A COLD CORE LOW WITH AN EXPANSIVE GALE FORCE WIND FIELD BY TAU 120. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 151800Z IS 30 FEET. NEXT WARNINGS AT 160300Z, 160900Z, 161500Z AND 162100Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#20
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 029
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 160000Z --- NEAR 22.8S 170.0E MOVEMENT PAST SIX HOURS - 255 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT REPEAT POSIT: 22.8S 170.0E --- FORECASTS: 12 HRS, VALID AT: 161200Z --- 23.7S 168.0E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 235 DEG/ 08 KTS --- 24 HRS, VALID AT: 170000Z --- 24.7S 166.5E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 045 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 225 DEG/ 09 KTS --- 36 HRS, VALID AT: 171200Z --- 26.0S 165.1E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 215 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 180000Z --- 27.4S 163.9E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 165 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 155 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 180 DEG/ 12 KTS --- 72 HRS, VALID AT: 190000Z --- 32.0S 163.8E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 205 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 140 DEG/ 21 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 200000Z --- 38.1S 170.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 125 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 190 NM NORTHWEST QUADRANT VECTOR TO 120 HR POSIT: 125 DEG/ 24 KTS --- 120 HRS, VALID AT: 210000Z --- 43.0S 178.1W MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 200 NM NORTHWEST QUADRANT --- REMARKS: 160300Z POSITION NEAR 23.0S 169.5E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 220 NM EAST- SOUTHEAST OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTI-SPECTRAL SATELLITE IMAGERY SHOWS A SLIGHTLY ELONGATED SYSTEM WITH A WELL- DEFINED 35 NM EYE FEATURE AND POLEWARD OUTFLOW EXTENDING INTO THE MID-LATITUDE WESTERLIES. THE INITIAL POSITION IS PLACED WITH HIGH CONFIDENCE BASED ON THE EYE IN THE ANIMATED LOOP AND A MICROWAVE EYE FEATURE IN A 152221Z 89GHZ MHS MICROWAVE IMAGE. THE MICROWAVE IMAGE ALSO DEPICTS A SLIGHTLY ELONGATED SYSTEM WITH DEEPEST CONVECTION IN THE SOUTHWESTERN QUADRANT. THE INITIAL INTENSITY OF 95 KNOTS IS BASED ON MULTI-AGENCY DVORAK CURRENT INTENSITY ESTIMATES RANGING FROM T5.0 TO T5.5 (90-102 KNOTS) FROM PGTW AND KNES RESPECTIVELY. ENVIRONMENTAL ANALYSIS REVEALS THE SYSTEM IS IN AN AREA OF LOW TO MODERATE (15-20 KNOTS) VERTICAL WIND SHEAR (VWS) AND IS TRACKING THROUGH WARM (26-27 CELSIUS) SEA SURFACE TEMPERATURES (SSTS). UPPER LEVEL ANALYSIS DEPICTS THAT THE SYSTEM IS UNDERNEATH A POINT SOURCE ALOFT AND HAS STRONG POLEWARD OUTFLOW ENHANCED BY THE MID-LATITUDE WESTERLIES. TC 09P IS TRACKING ALONG THE NORTHWESTERN EXTENT OF A DEEP-LAYERED SUB-TROPICAL RIDGE POSITIONED TO THE SOUTHEAST. TC GITA IS FORECAST TO SHIFT TRACK DIRECTION GRADUALLY SOUTH THOUGH TAU 48. AFTER TAU 48 THE SYSTEM WILL CROSS THE RIDGE AXIS AND RECURVE TO THE SOUTHEAST. THE SYSTEM WILL GRADUALLY WEAKEN THROUGHOUT THE DURATION OF THE FORECAST PERIOD AS VWS INCREASES AND UPPER LEVEL WINDS BECOME OUT OF PHASE WITH THE STORM MOTION AND SSTS BECOME UNFAVORABLE (<26 CELSIUS) AS THE CYCLONE TRACKS POLEWARD OF 25 SOUTH. AROUND TAU 72, TC GITA WILL BEGIN EXTRA-TROPICAL TRANSITION AS IT BEGINS TO INTERACT WITH THE BAROCLINIC ZONE. BY TAU 120, THE SYSTEM WILL BECOME A COLD CORE LOW WITH AN EXPANSIVE GALE FORCE WIND FIELD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160000Z IS 30 FEET. NEXT WARNINGS AT 160900Z, 161500Z, 162100Z AND 170300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#21
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 031
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 161200Z --- NEAR 23.5S 168.0E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 170 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT REPEAT POSIT: 23.5S 168.0E --- FORECASTS: 12 HRS, VALID AT: 170000Z --- 24.5S 166.4E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 230 DEG/ 09 KTS --- 24 HRS, VALID AT: 171200Z --- 25.7S 164.9E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 220 DEG/ 10 KTS --- 36 HRS, VALID AT: 180000Z --- 27.2S 163.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 190 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 181200Z --- 29.2S 163.1E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 160 DEG/ 15 KTS --- 72 HRS, VALID AT: 191200Z --- 34.8S 165.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 110 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 090 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT 215 NM SOUTHEAST QUADRANT 190 NM SOUTHWEST QUADRANT 175 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 130 DEG/ 24 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 201200Z --- 41.0S 175.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 230 NM NORTHEAST QUADRANT 205 NM SOUTHEAST QUADRANT 195 NM SOUTHWEST QUADRANT 205 NM NORTHWEST QUADRANT --- REMARKS: 161500Z POSITION NEAR 23.8S 167.6E. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 135 NM SOUTHEAST OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A WEAKENING TROPICAL CYCLONE WITH A DECAYING CONVECTIVE STRUCTURE. THE INITIAL POSITION IS BASED ON A 161050Z METOP-B ASCAT IMAGE WHICH CLEARLY SHOWS THE LOW LEVEL CIRCULATION CENTER (LLCC) WHICH IS BECOMING DISPLACED FROM THE CONVECTION DUE TO STRONG VERTICAL WIND SHEAR. THE INITIAL INTENSITY OF 80 KNOTS IS HEDGED SLIGHTLY ABOVE A DVORAK CURRENT INTENSITY (CI) ESTIMATE OF T4.5 (77 KNOTS) FROM KNES AND BETWEEN DVORAK CI ESTIMATES OF T5.0 (90 KNOTS) AND T4.0 (65 KNOTS) FROM PHFO AND PGTW RESPECTIVELY. ENVIRONMENTAL ANALYSIS REVEALS STRONG VERTICAL WIND SHEAR (25 TO 30 KNOTS) WHICH IS OFFSET BY A GOOD POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES ARE STILL FAVORABLE (27 TO 28 DEGREES CELSIUS). TC 09P IS TRACKING ALONG THE NORTHWESTERN EDGE OF THE SUBTROPICAL RIDGE (STR) POSITIONED TO THE SOUTHEAST. TC 09P WILL CONTINUE TO WEAKEN IN INTENSITY DUE TO INTERACTION WITH COOLER SEA SURFACE TEMPERATURES AND INCREASING VERTICAL WIND SHEAR AS IT ROUNDS THE STR. TC 09P WILL TRACK SOUTHWESTWARD THROUGH TAU 48 THEN SOUTHWARD AND EVENTUALLY SOUTHEASTWARD. TC 09P WILL BEGIN EXTRATROPICAL TRANSITION BY TAU 72 AND COMPLETE EXTRATROPICAL TRANSITION BY TAU 96 AS IT MAKES LANDFALL IN NEW ZEALAND. DYNAMIC MODEL GUIDANCE IS IN GOOD AGREEMENT. THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 161200Z IS 28 FEET. NEXT WARNINGS AT 162100Z, 170300Z, 170900Z AND 171500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#22
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 033
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 170000Z --- NEAR 24.5S 166.4E MOVEMENT PAST SIX HOURS - 230 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT 175 NM SOUTHEAST QUADRANT 160 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT REPEAT POSIT: 24.5S 166.4E --- FORECASTS: 12 HRS, VALID AT: 171200Z --- 25.5S 164.9E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 225 DEG/ 10 KTS --- 24 HRS, VALID AT: 180000Z --- 26.8S 163.3E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 205 DEG/ 09 KTS --- 36 HRS, VALID AT: 181200Z --- 28.5S 162.4E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 175 DEG/ 14 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 190000Z --- 31.2S 162.6E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 175 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 21 KTS --- 72 HRS, VALID AT: 200000Z --- 37.9S 168.4E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 235 NM NORTHEAST QUADRANT 235 NM SOUTHEAST QUADRANT 210 NM SOUTHWEST QUADRANT 190 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 135 DEG/ 18 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 210000Z --- 42.9S 175.4E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 175 NM SOUTHWEST QUADRANT 170 NM NORTHWEST QUADRANT --- REMARKS: 170300Z POSITION NEAR 24.8S 166.0E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 145 NM SOUTH OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHWESTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS WEAK BANDING CONVECTION WRAPPING AROUND THE LOW LEVEL CIRCULATION CENTER WITH DEEPER CONVECTION BEING SHEARED TO THE SOUTH. A 162201Z METOP-B MHS 89 GHZ MICROWAVE IMAGE SHOWS A NARROW BAND OF DEEP CONVECTION IN THE SOUTHWESTERN QUADRANT AND AN INTACT LOW LEVEL STRUCTURE. THERE IS HIGH CONFIDENCE IN THE INITIAL POSITION BASED ON ANIMATED MULTISPECTRAL AND THE AFOREMENTIONED MICROWAVE IMAGERY. THE INITIAL INTENSITY IS ASSESSED AT 70 KNOTS WHICH IS SUPPORTED BY MULTI-AGENCY CURRENT INTENSITY DVORAK ESTIMATES RANGING FROM T4.0 TO T4.5 (65 TO 77 KNOTS) AND A 161929Z SATCON ESTIMATE OF 70 KNOTS. UPPER-LEVEL CONDITIONS ARE MARGINAL TO FAVORABLE WITH SUFFICIENT DIVERGENCE AND POLEWARD OUTFLOW INTO THE MID-LATITUDE WESTERLIES BEING OFFSET BY MODERATE WIND SHEAR WHICH IS DISPLACING THE CONVECTION TO THE SOUTH. SSTS HAVE STEADILY BEEN DECREASING OVER THE LAST SEVERAL DAYS AND ARE NOW NEAR 25 CELSIUS. TC 09W WILL CONTINUE TO WEAKEN AS IT TRACKS OVER COOLER AND INCREASINGLY UNFAVORABLE WATERS FOR THE REMAINDER OF THE FORECAST PERIOD. THE STEERING RIDGE TO THE SOUTHEAST IS INFLUENCING THE CURRENT WEST-SOUTHWESTWARD TRACK AND WILL SHIFT TC 09S TO A SOUTHEASTWARD TRACK SHORTLY AFTER TAU 48 AS IT ROUNDS THE RIDGE AXIS. SOMETIME AROUND TAU 72 TC 09S IS FORECAST TO BEGIN INTERACTING WITH AN APPROACHING TROUGH FROM THE WEST AND BEGIN ITS TRANSITION INTO A COLD CORE EXTRATROPICAL SYSTEM. TC 09S IS EXPECTED TO FULLY COMPLETE EXTRATROPICAL TRANSITION BY TAU 96. DYNAMIC MODEL GUIDANCE SHOWS VERY GOOD AGREEMENT THROUGH TAU 72 BUT STARTS TO DIVERGE THEREAFTER AS THE WIND FIELD EXPANDS. OVERALL THERE IS HIGH CONFIDENCE IN THE FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170000Z IS 29 FEET. NEXT WARNINGS AT 170900Z, 171500Z, 172100Z AND 180300Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#23
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 034
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 170600Z --- NEAR 24.9S 165.6E MOVEMENT PAST SIX HOURS - 240 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT REPEAT POSIT: 24.9S 165.6E --- FORECASTS: 12 HRS, VALID AT: 171800Z --- 25.9S 163.8E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 215 DEG/ 10 KTS --- 24 HRS, VALID AT: 180600Z --- 27.5S 162.5E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 190 DEG/ 10 KTS --- 36 HRS, VALID AT: 181800Z --- 29.5S 162.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 185 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 160 DEG/ 16 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 190600Z --- 32.4S 163.3E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT 200 NM SOUTHEAST QUADRANT 185 NM SOUTHWEST QUADRANT 145 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 21 KTS --- 72 HRS, VALID AT: 200600Z --- 39.3S 169.6E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 220 NM NORTHEAST QUADRANT 240 NM SOUTHEAST QUADRANT 270 NM SOUTHWEST QUADRANT 200 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 135 DEG/ 14 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 210600Z --- 43.3S 174.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 210 NM NORTHEAST QUADRANT 210 NM SOUTHEAST QUADRANT 285 NM SOUTHWEST QUADRANT 215 NM NORTHWEST QUADRANT --- REMARKS: 170900Z POSITION NEAR 25.2S 165.1E. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 170 NM SOUTH OF NOUMEA, NEW CALEDONIA, HAS TRACKED WEST-SOUTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS AN EXPANDING CONVECTIVE CLOUD MASS ASSOCIATED WITH THE LOW LEVEL CIRCULATION CENTER (LLCC). THE INITIAL POSITION IS BASED ON A 170453Z 37GHZ MICROWAVE IMAGE WHICH STILL SHOWS A MICROWAVE EYE FEATURE AND A CLEARLY DEFINED LLCC. THE INITIAL INTENSITY OF 65 KNOTS IS BASED ON DVORAK CURRENT INTENSITY (CI) ESTIMATES OF T4.0 (65 KNOTS) FROM PHFO AND PGTW. ENVIRONMENTAL ANALYSIS REVEALS MODERATE VERTICAL WIND SHEAR (15 TO 20 KNOTS) WHICH IS STILL OFFSET BY A ROBUST POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES REMAIN FAVORABLE FOR THE TIME BEING, BETWEEN 26 AND 27 DEGREES CELSIUS. TC 09P IS TRACKING SOUTHWESTWARD ALONG THE NORTHWESTERN EDGE OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE SOUTHEAST. TC 09P WILL ROUND THE WESTERN EDGE OF THE STR AND BEGIN TO TRACK SOUTHWARD BY TAU 36, WITH AN INTENSITY OF 50 KNOTS. TC 09P WILL THEN TRACK SOUTHEASTWARD AND BEGIN EXTRATROPICAL TRANSITION BY TAU 72. TC 09P WILL MAKE LANDFALL IN NEW ZEALAND NEAR TAU 84 AND COMPLETE EXTRA TROPICAL TRANSITION BY TAU 96. DYNAMIC MODEL GUIDANCE IS STILL IN GOOD AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170600Z IS 28 FEET. NEXT WARNINGS AT 171500Z, 172100Z, 180300Z AND 180900Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#24
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 035
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 171200Z --- NEAR 25.5S 164.7E MOVEMENT PAST SIX HOURS - 235 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 045 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT REPEAT POSIT: 25.5S 164.7E --- FORECASTS: 12 HRS, VALID AT: 180000Z --- 26.6S 163.1E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 210 DEG/ 10 KTS --- 24 HRS, VALID AT: 181200Z --- 28.4S 162.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 180 DEG/ 13 KTS --- 36 HRS, VALID AT: 190000Z --- 30.9S 162.1E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 150 DEG/ 17 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191200Z --- 33.8S 164.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 195 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 215 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 21 KTS --- 72 HRS, VALID AT: 201200Z --- 40.5S 170.6E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 195 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 270 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT VECTOR TO 96 HR POSIT: 135 DEG/ 13 KTS --- LONG RANGE OUTLOOK: --- 96 HRS, VALID AT: 211200Z --- 44.1S 175.8E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 200 NM NORTHEAST QUADRANT 180 NM SOUTHEAST QUADRANT 280 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 171500Z POSITION NEAR 25.8S 164.3E. TROPICAL CYCLONE (TC) 09P (GITA), LOCATED APPROXIMATELY 218 NM SOUTH- SOUTHWEST OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A WEAKENING CONVECTIVE STRUCTURE ASSOCIATED WITH THE LOW LEVEL CIRCULATION CENTER (LLCC) OF TC 09P. DESPITE THE WEAKENING CONVECTION THE SURFACE WINDS REMAIN STRONG. THE INITIAL POSITION IS BASED ON A 171126Z METOP-B ASCAT IMAGE WHICH SHOWS A STRONG AND SYMMETRIC WIND FIELD. THE INITIAL INTENSITY OF 60 KNOTS HEDGED ABOVE THE AFOREMENTIONED ASCAT IMAGE WHICH SHOWS A LARGE SWATH OF 50 KNOT WINDS WITH 60 KNOT WINDS LIKELY EMBEDDED BUT NOT DISPLAYED IN THE ASCAT PASS. ENVIRONMENTAL ANALYSIS REVEALS MODERATE VERTICAL WIND SHEAR (15 TO 20 KNOTS) WHICH IS STILL OFFSET BY A ROBUST POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES REMAIN FAVORABLE FOR THE TIME BEING, BETWEEN 26 AND 27 DEGREES CELSIUS. TC 09P IS TRACKING SOUTHWESTWARD ALONG THE NORTHWESTERN EDGE OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE SOUTHEAST. TC 09P WILL ROUND THE WESTERN EDGE OF THE STR AND BEGIN TO TRACK SOUTHWARD BY TAU 30, WITH AN INTENSITY OF 50 KNOTS. TC 09P WILL THEN TRACK SOUTHEASTWARD AS IT ACCELERATES AND BEGINS EXTRATROPICAL TRANSITION BY TAU 72. TC 09P WILL MAKE LANDFALL IN NEW ZEALAND NEAR TAU 84 AND COMPLETE EXTRATROPICAL TRANSITION BY TAU 96. DYNAMIC MODEL GUIDANCE IS STILL IN GOOD AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171200Z IS 28 FEET. NEXT WARNINGS AT 172100Z, 180300Z, 180900Z AND 181500Z. https://icons.wunderground.com/data/...01809_5day.gif
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David |
#25
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1. TROPICAL CYCLONE 09P (GITA) WARNING NR 036
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE WIND RADII VALID OVER OPEN WATER ONLY --- WARNING POSITION: 171800Z --- NEAR 26.0S 164.1E MOVEMENT PAST SIX HOURS - 225 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 035 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT REPEAT POSIT: 26.0S 164.1E --- FORECASTS: 12 HRS, VALID AT: 180600Z --- 27.4S 162.6E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 160 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 195 DEG/ 11 KTS --- 24 HRS, VALID AT: 181800Z --- 29.5S 162.0E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 165 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 170 DEG/ 14 KTS --- 36 HRS, VALID AT: 190600Z --- 32.2S 162.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 155 NM NORTHEAST QUADRANT 170 NM SOUTHEAST QUADRANT 145 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 145 DEG/ 20 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191800Z --- 35.4S 165.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY BECOMING EXTRATROPICAL RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 195 NM NORTHEAST QUADRANT 230 NM SOUTHEAST QUADRANT 215 NM SOUTHWEST QUADRANT 180 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 145 DEG/ 19 KTS --- 72 HRS, VALID AT: 201800Z --- 41.4S 171.3E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY EXTRATROPICAL RADIUS OF 034 KT WINDS - 195 NM NORTHEAST QUADRANT 195 NM SOUTHEAST QUADRANT 270 NM SOUTHWEST QUADRANT 155 NM NORTHWEST QUADRANT --- REMARKS: 172100Z POSITION NEAR 26.3S 163.7E. TROPICAL CYCLONE 09P (GITA), LOCATED APPROXIMATELY 258 NM SOUTH- SOUTHWEST OF NOUMEA, NEW CALEDONIA, HAS TRACKED SOUTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY SHOWS A WEAKENING CONVECTIVE STRUCTURE WITH A SMALL AREA OF REMAINING CENTRAL CONVECTION IN THE SOUTHERN SEMI- CIRCLE OF THE LOW LEVEL CIRCULATION (LLC). A 171610Z SSMIS 37 GHZ MICROWAVE IMAGE REVEALS THE REMNANTS OF A LOW LEVEL EYE FEATURE THAT IS NO LONGER INTACT. THE INITIAL POSITION IS BASED ON THE 91 GHZ IMAGE FROM THIS SSMIS PASS WITH HIGH CONFIDENCE. THE INITIAL INTENSITY OF 55 KNOTS IS BASED ON THE GRADUAL WEAKENING OBSERVED IN THE LOW LEVEL STRUCTURE AND SUPPORTED BY A 171438Z SATCON CURRENT INTENSITY ESTIMATE OF 63 KNOTS. ENVIRONMENTAL ANALYSIS REVEALS MODERATE VERTICAL WIND SHEAR (15 TO 20 KNOTS) WHICH IS STILL OFFSET BY A ROBUST POLEWARD OUTFLOW CHANNEL. SEA SURFACE TEMPERATURES ARE AT ABOUT 25 DEGREES CELSIUS AND WILL CONTINUE TO DROP BELOW THIS THRESHOLD AS TC 09P TRACKS SOUTHWESTWARD ALONG THE EDGE OF A SUBTROPICAL RIDGE (STR) LOCATED TO THE SOUTHEAST. TC 09P WILL ROUND THE WESTERN EDGE OF THE STR AND BEGIN TO TRACK SOUTHWARD BY TAU 24, WITH AN INTENSITY OF 50 KNOTS. TC 09P WILL THEN TRACK SOUTHEASTWARD AS IT ACCELERATES AND BEGINS EXTRATROPICAL TRANSITION BY TAU 72. AS TC 09P TRANSITIONS, ITS WIND FIELD WILL BROADEN AND SLIGHTLY STRENGTHEN ALLOWING INTENSITY TO REMAIN AT 50 KNOTS DESPITE HIGHLY UNFAVORABLE SSTS. TC 09P WILL BE COMPLETELY EXTRATROPICAL JUST OFF THE COAST OF NEW ZEALAND AT TAU 72. DYNAMIC MODEL GUIDANCE IS STILL IN GOOD AGREEMENT, THEREFORE, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171800Z IS 27 FEET. NEXT WARNINGS AT 180300Z, 180900Z, 181500Z AND 182100Z.// https://icons.wunderground.com/data/...01809_5day.gif
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David |
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