• Pacific-NW: Choi-Wan W009

    From Weather Alert@1:2320/105 to All on Mon May 31 18:14:00 2021
    WTPN31 PGTW 312100
    MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
    SUBJ/TROPICAL STORM 04W (CHOI-WAN) WARNING NR 009//
    RMKS/
    1. TROPICAL STORM 04W (CHOI-WAN) WARNING NR 009
    01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
    MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    WIND RADII VALID OVER OPEN WATER ONLY
    ---
    WARNING POSITION:
    311800Z --- NEAR 9.9N 128.4E
    MOVEMENT PAST SIX HOURS - 300 DEGREES AT 08 KTS
    POSITION ACCURATE TO WITHIN 040 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 - 060 NM NORTHEAST QUADRANT
    065 NM SOUTHEAST QUADRANT
    080 NM SOUTHWEST QUADRANT
    070 NM NORTHWEST QUADRANT
    REPEAT POSIT: 9.9N 128.4E
    ---
    FORECASTS:
    12 HRS, VALID AT:
    010600Z --- 11.0N 126.9E
    MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 050 KT WINDS - 010 NM NORTHEAST QUADRANT
    020 NM SOUTHEAST QUADRANT
    010 NM SOUTHWEST QUADRANT
    000 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
    060 NM SOUTHEAST QUADRANT
    070 NM SOUTHWEST QUADRANT
    050 NM NORTHWEST QUADRANT
    VECTOR TO 24 HR POSIT: 310 DEG/ 10 KTS
    ---
    24 HRS, VALID AT:
    011800Z --- 12.2N 125.3E
    MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 050 KT WINDS - 010 NM NORTHEAST QUADRANT
    020 NM SOUTHEAST QUADRANT
    020 NM SOUTHWEST QUADRANT
    000 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
    050 NM SOUTHEAST QUADRANT
    060 NM SOUTHWEST QUADRANT
    030 NM NORTHWEST QUADRANT
    VECTOR TO 36 HR POSIT: 310 DEG/ 11 KTS
    ---
    36 HRS, VALID AT:
    020600Z --- 13.5N 123.6E
    MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 050 KT WINDS - 010 NM NORTHEAST QUADRANT
    020 NM SOUTHEAST QUADRANT
    020 NM SOUTHWEST QUADRANT
    000 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
    050 NM SOUTHEAST QUADRANT
    060 NM SOUTHWEST QUADRANT
    040 NM NORTHWEST QUADRANT
    VECTOR TO 48 HR POSIT: 325 DEG/ 10 KTS
    ---
    EXTENDED OUTLOOK:
    48 HRS, VALID AT:
    021800Z --- 15.1N 122.5E
    MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 050 KT WINDS - 010 NM NORTHEAST QUADRANT
    020 NM SOUTHEAST QUADRANT
    010 NM SOUTHWEST QUADRANT
    000 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    040 NM NORTHWEST QUADRANT
    VECTOR TO 72 HR POSIT: 355 DEG/ 08 KTS
    ---
    72 HRS, VALID AT:
    031800Z --- 18.1N 122.3E
    MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
    030 NM SOUTHEAST QUADRANT
    030 NM SOUTHWEST QUADRANT
    010 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT
    070 NM SOUTHEAST QUADRANT
    080 NM SOUTHWEST QUADRANT
    070 NM NORTHWEST QUADRANT
    VECTOR TO 96 HR POSIT: 035 DEG/ 08 KTS
    ---
    LONG RANGE OUTLOOK:
    ---
    96 HRS, VALID AT:
    041800Z --- 20.8N 124.2E
    MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
    090 NM SOUTHEAST QUADRANT
    100 NM SOUTHWEST QUADRANT
    040 NM NORTHWEST QUADRANT
    VECTOR TO 120 HR POSIT: 045 DEG/ 11 KTS
    ---
    120 HRS, VALID AT:
    051800Z --- 23.7N 127.6E
    MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    BECOMING EXTRATROPICAL
    RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
    090 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    050 NM NORTHWEST QUADRANT
    ---
    REMARKS:
    312100Z POSITION NEAR 10.2N 128.0E.
    31MAY21. TROPICAL STORM 04W (CHOI-WAN), LOCATED APPROXIMATELY 517
    NM EAST-SOUTHEAST OF MANILA, PHILIPPINES, HAS TRACKED WEST-
    NORTHWESTWARD AT 08 KNOTS OVER THE PAST SIX HOURS. MAXIMUM
    SIGNIFICANT WAVE HEIGHT AT 311800Z IS 16 FEET. NEXT WARNINGS
    AT 010300Z, 010900Z, 011500Z AND 012100Z.//
    NNNN
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