WTPN31 PGTW 190900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FINAL WARNING//
RMKS/
1. TROPICAL DEPRESSION 31W (KIROGI) WARNING NR 008
DOWNGRADED FROM TROPICAL STORM 31W
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
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WARNING POSITION:
190600Z --- NEAR 11.5N 109.0E
MOVEMENT PAST SIX HOURS - 290 DEGREES AT 15 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
REPEAT POSIT: 11.5N 109.0E
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FORECASTS:
12 HRS, VALID AT:
191800Z --- 11.8N 106.2E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 24 HR POSIT: 270 DEG/ 14 KTS
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24 HRS, VALID AT:
200600Z --- 11.7N 103.4E
MAX SUSTAINED WINDS - 015 KT, GUSTS 025 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
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REMARKS:
190900Z POSITION NEAR 11.6N 108.3E.
TROPICAL DEPRESSION (TD) 31W (KIROGI), LOCATED APPROXIMATELY 142 NM
EAST-NORTHEAST OF HO CHI MINH CITY, VIETNAM, HAS TRACKED WEST-
NORTHWESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. TD 31W MADE
LANDFALL AT 19/06Z APPROXIMATELY 30NM SOUTH-SOUTHWEST OF CAM RANH
BAY (VVCR), WHICH REPORTED MAXIMUM SUSTAINED SURFACE WINDS OF 20
KNOTS WITH MINIMUM SLP NEAR 1006MB. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY DEPICTS A RAPIDLY-WEAKENING, EXPOSED LOW-LEVEL CIRCULATION
CENTER WITH FLARING DEEP CONVECTION. THE CURRENT INTENSITY IS
ASSESSED AT 30 KNOTS BASED ON A DVORAK ESTIMATE OF T2.0 FROM KNES.
TD 31W IS TRACKING WEST-NORTHWESTWARD AND WILL CONTINUE TRACKING
GENERALLY WESTWARD THROUGH THE FORECAST PERIOD. THE SYSTEM IS
EXPECTED TO DISSIPATE WITHIN THE NEXT 12 HOURS. OVERALL, THERE IS
HIGH CONFIDENCE IN THE JTWC FORECAST TRACK. THIS IS THE FINAL
WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI.
THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION.
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