Subject: Pacific-NW: 1. Typhoon Keith (29w) Warning Nr 033

From: SIU Weather Processor <[email-masked]>
Date: Tue, 4 Nov 1997 14:48:57 -0600

157
WTPN31 PGTW 042100
1. TYPHOON KEITH (29W) WARNING NR 033
   01 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   041800Z3 --- 17.5N3 135.0E9
     MOVEMENT PAST SIX HOURS - 310 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 115 KT, GUSTS 140 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: 17.5N3 135.0E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   050600Z1 --- 18.5N4 134.3E1
   MAX SUSTAINED WINDS - 115 KT, GUSTS 140 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: 360 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   051800Z4 --- 19.5N5 134.3E1
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 110 NM NORTHEAST SEMICIRCLE
                            080 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 230 NM NORTHEAST SEMICIRCLE
                            160 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 025 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   060600Z2 --- 21.0N3 135.0E9
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   RADIUS OF 050 KT WINDS - 100 NM EAST SEMICIRCLE
                            060 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 210 NM EAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 035 DEG/ 10 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   061800Z5 --- 22.6N0 136.3E3
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 050 KT WINDS - 090 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 200 NM EAST SEMICIRCLE
                            120 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 035 DEG/ 14 KTS
    ---
   72 HRS, VALID AT:
   071800Z6 --- 27.1N0 139.7E0
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 080 NM SOUTHEAST SEMICIRCLE
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM SOUTHEAST SEMICIRCLE
                            110 NM ELSEWHERE
    ---
REMARKS:
042100Z7 POSITION 17.8N6  134.8E6
LATEST INFRARED SATELLITE IMAGERY SHOWS THAT TYPHOON
KEITH (29W) IS MOVING TOWARDS THE NORTHWEST AT 08 KNOTS.
INTENSITY ESTIMATES FROM SATELLITE INDICATE THAT KEITH
REMAINS AN INTENSE TROPICAL CYCLONE WITH MAXIMUM
SUSTAINED WINDS OF 115 KNOTS AROUND A 35NM DIAMETER EYE.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 041800Z IS 30 FEET.
REFER TO WWPW31 PGFW FOR ADDITIONAL SEA HEIGHT
INFORMATION.  NEXT WARNINGS AT 050300Z8 (DTG 050153Z4),
050900Z4 (DTG 050753Z0), 051500Z1 (DTG 051353Z7) AND
052100Z8 (DTG 051953Z3).//

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