Subject: Pacific-NW: Marine Warning -251446 (AUTOMATIC)

From: Charley Kline <[email-masked]>
Date: Sun, 25 Aug 1996 14:46:57 -0500

ZCZC DD+ 114801
WTPN33 PGTW 252100
1. TROPICAL STORM PIPER (20W) WARNING NR 012
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   251800Z6 --- 37.6N6 158.4E8
     MOVEMENT PAST SIX HOURS - 360 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 020 NM
   RADIUS OF 035 KT WINDS - 070 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   REPEAT POSIT: 37.6N6 158.4E8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   260600Z4 --- 40.2N6 158.6E0
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 020 NM
   RADIUS OF 035 KT WINDS - 070 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 020 DEG/ 13 KTS
    ---
   24 HRS, VALID AT:
   261800Z7 --- 42.7N3 159.7E2
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 035 KT WINDS - 065 NM EAST SEMICIRCLE
                            045 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 025 DEG/ 15 KTS
    ---
   36 HRS, VALID AT:
   270600Z5 --- 45.4N3 161.6E4
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   EXTRATROPICAL
    ---
REMARKS:
252100Z0 POSITION 38.3N4  158.5E9
TROPICAL STORM PIPER (20W) IS UNDER THE INFLUENCE OF
STRONG WESTERLY VERTICAL WIND SHEAR. PIPER IS EXPECTED TO
WEAKEN SLOWLY AS IT MOVES NORTHWARD AND MERGES WITH AN
APPROACHING MIDLATITUDE FRONTAL SYSTEM. PIPER IS EXPECTED
TO TRANSITION TO AN EXTRATROPICAL LOW PRESSURE SYSTEM BY
270000Z. NEXT WARNINGS AT 260300Z1 (DTG 260151Z5),
260900Z7 (DTG 260751Z1), 261500Z4 (DTG 261351Z8) AND
262100Z1 (DTG 261951Z4). MAXIMUM SIGNIFICANT WAVE HEIGHT
AT 251800Z IS 12 FEET. REFER TO WWPW31 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. REFER TO TYPHOON ORSON
(19W) (WTPN32 PGTW) FOR SIX-HOURLY UPDATES.//

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