• Pacific-NW: ST Surigae 18

    From Weather Alert@1:2320/105 to All on Sat Apr 17 18:32:00 2021
    WTPN31 PGTW 172100
    MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
    SUBJ/TROPICAL CYCLONE WARNING//
    RMKS/
    1. SUPER TYPHOON 02W (SURIGAE) WARNING NR 018
    01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
    MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    WIND RADII VALID OVER OPEN WATER ONLY
    ---
    WARNING POSITION:
    171800Z --- NEAR 12.6N 128.4E
    MOVEMENT PAST SIX HOURS - 310 DEGREES AT 10 KTS
    POSITION ACCURATE TO WITHIN 020 NM
    POSITION BASED ON EYE FIXED BY SATELLITE
    PRESENT WIND DISTRIBUTION:
    MAX SUSTAINED WINDS - 165 KT, GUSTS 200 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 075 NM NORTHEAST QUADRANT
    050 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    070 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 130 NM NORTHEAST QUADRANT
    095 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    135 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT
    145 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    195 NM NORTHWEST QUADRANT
    REPEAT POSIT: 12.6N 128.4E
    ---
    FORECASTS:
    12 HRS, VALID AT:
    180600Z --- 13.5N 127.1E
    MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 070 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    060 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    120 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT
    130 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    180 NM NORTHWEST QUADRANT
    VECTOR TO 24 HR POSIT: 320 DEG/ 05 KTS
    ---
    24 HRS, VALID AT:
    181800Z --- 14.2N 126.5E
    MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 060 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    060 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 120 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    120 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT
    120 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    170 NM NORTHWEST QUADRANT
    VECTOR TO 36 HR POSIT: 345 DEG/ 04 KTS
    ---
    36 HRS, VALID AT:
    190600Z --- 14.9N 126.3E
    MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    050 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 110 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    110 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
    120 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    160 NM NORTHWEST QUADRANT
    VECTOR TO 48 HR POSIT: 335 DEG/ 03 KTS
    ---
    EXTENDED OUTLOOK:
    48 HRS, VALID AT:
    191800Z --- 15.5N 126.0E
    MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    050 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 110 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    110 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
    120 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    150 NM NORTHWEST QUADRANT
    VECTOR TO 72 HR POSIT: 345 DEG/ 05 KTS
    ---
    72 HRS, VALID AT:
    201800Z --- 17.3N 125.5E
    MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    040 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 110 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    110 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
    120 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    140 NM NORTHWEST QUADRANT
    VECTOR TO 96 HR POSIT: 360 DEG/ 04 KTS
    ---
    LONG RANGE OUTLOOK:
    ---
    96 HRS, VALID AT:
    211800Z --- 18.8N 125.5E
    MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
    040 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    030 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT
    080 NM SOUTHEAST QUADRANT
    110 NM SOUTHWEST QUADRANT
    100 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
    130 NM SOUTHEAST QUADRANT
    170 NM SOUTHWEST QUADRANT
    130 NM NORTHWEST QUADRANT
    VECTOR TO 120 HR POSIT: 040 DEG/ 07 KTS
    ---
    120 HRS, VALID AT:
    221800Z --- 21.0N 127.5E
    MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
    WIND RADII VALID OVER OPEN WATER ONLY
    RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
    030 NM SOUTHEAST QUADRANT
    050 NM SOUTHWEST QUADRANT
    030 NM NORTHWEST QUADRANT
    RADIUS OF 050 KT WINDS - 100 NM NORTHEAST QUADRANT
    070 NM SOUTHEAST QUADRANT
    100 NM SOUTHWEST QUADRANT
    100 NM NORTHWEST QUADRANT
    RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
    120 NM SOUTHEAST QUADRANT
    160 NM SOUTHWEST QUADRANT
    130 NM NORTHWEST QUADRANT
    ---
    REMARKS:
    172100Z POSITION NEAR 12.8N 128.1E.
    17APR21. SUPER TYPHOON 02W (SURIGAE), LOCATED APPROXIMATELY 448
    NM EAST-SOUTHEAST OF MANILA, PHILIPPINES, HAS TRACKED
    NORTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. MAXIMUM
    SIGNIFICANT WAVE HEIGHT AT 171800Z IS 58 FEET. NEXT WARNINGS AT
    180300Z, 180900Z, 181500Z AND 182100Z.//
    NNNN
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