Subject: Pacific-NW: 1. Typhoon Keith (29w) Warning Nr 034

From: SIU Weather Processor <[email-masked]>
Date: Tue, 4 Nov 1997 20:27:44 -0600

522
WTPN31 PGTW 050300
1. TYPHOON KEITH (29W) WARNING NR 034
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   050000Z5 --- 17.9N7 134.8E6
     MOVEMENT PAST SIX HOURS - 335 DEGREES AT 04 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 110 NM SOUTHWEST QUADRANT
                            150 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 190 NM SOUTHWEST QUADRANT
                            250 NM ELSEWHERE
   REPEAT POSIT: 17.9N7 134.8E6
    ---
   FORECASTS:
   12 HRS, VALID AT:
   051200Z8 --- 18.9N8 134.7E5
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 130 NM NORTHEAST SEMICIRCLE
                            100 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 240 NM NORTHEAST SEMICIRCLE
                            180 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 010 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   060000Z6 --- 20.4N6 135.0E9
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 100 NM EAST SEMICIRCLE
                            070 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 220 NM EAST SEMICIRCLE
                            160 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 025 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   061200Z9 --- 22.0N4 135.8E7
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 090 NM SOUTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 200 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 040 DEG/ 12 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   070000Z7 --- 23.9N4 137.5E6
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 050 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE
                         040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM SOUTHEAST SEMICIRCLE
                            100 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 045 DEG/ 16 KTS
    ---
   72 HRS, VALID AT:
   080000Z8 --- 28.3N3 142.6E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE
                            035 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM SOUTHEAST SEMICIRCLE
                            090 NM ELSEWHERE
    ---
REMARKS:
050300Z8 POSITION 18.2N1  134.8E6
TYPHOON KEITH (29W) CONTINUES TO SLOWLY WEAKEN AS IT
MOVES NORTH-NORTHWESTWARD AT 04 KNOTS.  THE WARNING
POSITION IS BASED UPON 042330Z2 VISIBLE SATELLITE
IMAGERY.  THERE IS NO SIGNIFICANT CHANGE IN THE FORECAST
PHILOSOPHY.  MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050000Z
IS 26 FEET.  REFER TO WWPW30 PGFW FOR ADDITIONAL SEA
HEIGHT INFORMATION.  NEXT WARNINGS AT 050900Z4 (DTG
050753Z8), 051500Z1 (DTG 051353Z5), 052100Z8 (DTG
051953Z1) AND 060300Z9 (DTG 060153Z3).//

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