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WTPN31 PGTW 170300
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TYPHOON 02W (CHANCHU) WARNING NR 034
01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
---
WARNING POSITION:
170000Z --- NEAR 20.4N 115.6E
MOVEMENT PAST SIX HOURS - 010 DEGREES AT 09 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
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 - 085 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
165 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
120 NM NORTHWEST QUADRANT
REPEAT POSIT: 20.4N 115.6E
---
FORECASTS:
12 HRS, VALID AT:
171200Z --- 22.3N 116.2E
MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
BECOMING EXTRATROPICAL
RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
OVER WATER
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
OVER WATER
RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT
OVER WATER
065 NM SOUTHEAST QUADRANT
065 NM SOUTHWEST QUADRANT
065 NM NORTHWEST QUADRANT
OVER WATER
RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
OVER WATER
120 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
120 NM NORTHWEST QUADRANT
OVER WATER
VECTOR TO 24 HR POSIT: 025 DEG/ 12 KTS
---
24 HRS, VALID AT:
180000Z --- 24.4N 117.3E
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
BECOMING EXTRATROPICAL
VECTOR TO 36 HR POSIT: 030 DEG/ 16 KTS
---
36 HRS, VALID AT:
181200Z --- 27.2N 119.2E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
EXTRATROPICAL
VECTOR TO 48 HR POSIT: 045 DEG/ 19 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
190000Z --- 29.9N 122.1E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
EXTRATROPICAL
---
REMARKS:
170300Z POSITION NEAR 20.9N 115.7E.
TYPHOON (TY) 02W (CHANCHU), LOCATED APPROXIMATELY 135 NM SOUTHEAST
OF HONG KONG, HAS TRACKED NORTHWARD AT 09 KNOTS OVER THE PAST 06
HOURS. RECENT ANIMATED WATER VAPOR IMAGERY DEPICTS AN EROSION OF
CONVECTION IN THE WESTERN STORM QUADRANTS. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 170000Z IS 34 FEET. NEXT WARNINGS AT 170900Z, 171500Z,
172100Z AND 180300Z.//
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