Final warning on the first warning
WTPN31 PGTW 301500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL DEPRESSION 01W (ONE) WARNING NR 001//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/292121ZMAR2022//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. TROPICAL DEPRESSION 01W (ONE) WARNING NR 001
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
301200Z --- NEAR 11.8N 110.3E
MOVEMENT PAST SIX HOURS - 285 DEGREES AT 07 KTS
POSITION ACCURATE TO WITHIN 040 NM
POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
SATELLITE, RADAR AND SYNOPTIC DATA
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
REPEAT POSIT: 11.8N 110.3E
---
FORECASTS:
12 HRS, VALID AT:
310000Z --- 12.3N 109.0E
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: 295 DEG/ 07 KTS
---
24 HRS, VALID AT:
311200Z --- 12.9N 107.7E
MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
---
REMARKS:
301500Z POSITION NEAR 11.9N 110.0E.
30MAR22. TROPICAL DEPRESSION (TD) 01W (ONE), LOCATED APPROXIMATELY 220
NM EAST-NORTHEAST OF HO CHI MINH CITY, VIETNAM, HAS TRACKED WEST-
NORTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED
INFRARED SATELLITE IMAGERY AND RADAR IMAGERY INDICATE A CONSOLIDATING
SYSTEM WITH IMPROVED CONVECTIVE BANDING OVER THE WESTERN AND SOUTHERN
QUADRANTS AND PERSISTENT DEEP CONVECTION OVER THE CENTER. A 301219Z
AMSU 89GHZ MICROWAVE IMAGE INDICATES DEEP CONVECTIVE BANDING HAS
FINALLY FORMED OVER THE WESTERN SEMICIRCLE. A FORTUITOUS 301343Z
ASCAT-B IMAGE DEPICTS A WELL-DEFINED, SYMMETRIC CIRCULATION WITH 20-25
KNOT WINDS WRAPPING AROUND THE WESTERN SEMICIRCLE INTO THE SOUTHWEST
QUADRANT. THERE IS HIGH CONFIDENCE IN THE INITIAL POSITION BASED ON
THIS ASCAT IMAGE. DVORAK ESTIMATES FROM KNES AND PGTW RANGE FROM T1.0
TO T1.5, WHICH SUPPORTS THE INITIAL INTENSITY ASSESSMENT OF 25 KNOTS.
TD 01W IS FORECAST TO TRACK WEST-NORTHWESTWARD UNDER THE LOW-LEVEL
SUBTROPICAL RIDGE POSITIONED TO THE NORTH AND IS EXPECTED TO MAKE
LANDFALL JUST PRIOR TO TAU 12 THEN TRACK INLAND WHILE DISSIPATING.
NUMERICAL MODEL GUIDANCE SUPPORTS THE JTWC FORECAST TRACK WITH HIGH
CONFIDENCE. 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. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 301200Z
IS 7 FEET.
2. THIS CANCELS AND SUPERSEDES REF A (WTPN21 PGTW 292130).//
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