Subject: Pacific-NW: 1. Super Typhoon Keith (29w) Warning Nr 026

From: SIU Weather Processor <[email-masked]>
Date: Sun, 2 Nov 1997 21:23:21 -0600

424
WTPN31 PGTW 030300
1. SUPER TYPHOON KEITH (29W) WARNING NR 026
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---

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   WARNING POSITION:
   030000Z3 --- 15.5N1 141.7E3
     MOVEMENT PAST SIX HOURS - 285 DEGREES AT 12 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON EYE FIXED BY A COMBINATION OF
     SATELLITE AND RADAR
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 150 KT, GUSTS 180 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM WEST SEMICIRCLE
                            155 NM ELSEWHERE
   REPEAT POSIT: 15.5N1 141.7E3
    ---
   FORECASTS:
   12 HRS, VALID AT:
   031200Z6 --- 16.2N9 139.5E8
   MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT
   RADIUS OF 100 KT WINDS - 020 NM

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   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM SOUTHWEST QUADRANT
                            145 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 295 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   040000Z4 --- 17.1N9 137.4E5
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM SOUTHWEST QUADRANT
                            140 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 320 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   041200Z7 --- 18.5N4 136.1E1
   MAX SUSTAINED WINDS - 135 KT, GUSTS 165 KT
   RADIUS OF 100 KT WINDS - 020 NM

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   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM SOUTHWEST QUADRANT
                            140 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 335 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   050000Z5 --- 20.0N2 135.4E3
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 070 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM SOUTHWEST QUADRANT
                            140 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 350 DEG/ 06 KTS
    ---
   72 HRS, VALID AT:
   060000Z6 --- 22.5N9 135.0E9
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT

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   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 070 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 105 NM SOUTHWEST QUADRANT
                            140 NM ELSEWHERE
    ---
REMARKS:
030300Z6 POSITION 15.7N3  141.2E8
SUPER TYPHOON KEITH (29W) IS MOVING WEST-NORTHWESTWARD AT
12 KNOTS. SUBSTANTIAL INFLOW WINDS REMAIN NEAR THE
MARIANA ISLANDS. ALTHOUGH OUTSIDE THE 35 KNOT SUSTAINED
WIND RADIUS, THESE FEEDER BANDS MAY BE ASSOCIATED WITH
SIGNIFICANT WIND GUSTS. THERE IS NO SIGNIFICANT CHANGE
TO THE FORECAST PHILOSOPHY. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 030000Z IS 42 FEET. REFER TO WWPW30 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT
030900Z2 (DTG 030753Z8), 031500Z9 (DTG 031353Z5),
032100Z6 (DTG 031953Z1) AND 040300Z7 (DTG 040153Z3).
REFER TO TYPHOON LINDA (30W) WARNINGS (WTPN32 PGTW) FOR
SIX-HOURLY UPDATES.//

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BT
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