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WTPN31 PGTW 172100
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TYPHOON 02W (CHANCHU) WARNING NR 037
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
171800Z --- NEAR 23.4N 117.0E
MOVEMENT PAST SIX HOURS - 020 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
BECOMING EXTRATROPICAL
RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
OVER WATER
035 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
005 NM NORTHWEST QUADRANT
OVER WATER
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
OVER WATER
050 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
OVER WATER
030 NM NORTHWEST QUADRANT
OVER WATER
RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
OVER WATER
140 NM SOUTHEAST QUADRANT
120 NM SOUTHWEST QUADRANT
OVER WATER
100 NM NORTHWEST QUADRANT
OVER WATER
REPEAT POSIT: 23.4N 117.0E
---
FORECASTS:
12 HRS, VALID AT:
180600Z --- 26.3N 118.7E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
EXTRATROPICAL
VECTOR TO 24 HR POSIT: 030 DEG/ 17 KTS
---
24 HRS, VALID AT:
181800Z --- 29.2N 120.8E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
EXTRATROPICAL
---
REMARKS:
172100Z POSITION NEAR 24.1N 117.4E.
TYPHOON (TY) 02W (CHANCHU), LOCATED APPROXIMATELY 170 NM EAST-
NORTHEAST OF HONG KONG, HAS TRACKED NORTH-NORTHEASTWARD AT 10 KNOTS
OVER THE PAST 06 HOURS. ANIMATED SATELLITE IMAGERY AND A 171432Z
AMSU-B PASS INDICATE THAT TY 02W HAS STARTED TO MAKE LANDFALL AND
CONTINUES TO TRANSITION TO AN EXTRATROPICAL CYCLONE. MAXIMUM SIGNIF-
ICANT WAVE HEIGHT AT 171800Z IS 17 FEET. NEXT WARNINGS AT 180300Z,
180900Z AND 181500Z.//
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