Subject: Pacific-NW: 1. Super Typhoon Keith (29w) Warning Nr 018

From: SIU Weather Processor <[email-masked]>
Date: Fri, 31 Oct 1997 21:57:32 -0600

626
WTPN31 PGTW 010300
1. SUPER TYPHOON KEITH (29W) WARNING NR 018
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   010000Z1 --- 11.4N6 153.1E0
     MOVEMENT PAST SIX HOURS - 300 DEGREES AT 15 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 080 NM NORTHEAST SEMICIRCLE
                            065 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM NORTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   REPEAT POSIT: 11.4N6 153.1E0
    ---
   FORECASTS:
   12 HRS, VALID AT:
   011200Z4 --- 12.3N6 150.6E2
   MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT
   RADIUS OF 100 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 085 NM NORTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 175 NM NORTHEAST SEMICIRCLE
                            145 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 285 DEG/ 13 KTS
    ---
   24 HRS, VALID AT:
   020000Z2 --- 13.0N4 148.0E3
   MAX SUSTAINED WINDS - 150 KT, GUSTS 180 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 090 NM NORTHEAST SEMICIRCLE
                            075 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE
                            150 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 290 DEG/ 13 KTS
    ---
   36 HRS, VALID AT:
   021200Z5 --- 13.8N2 145.4E4
   MAX SUSTAINED WINDS - 155 KT, GUSTS 190 KT
   RADIUS OF 100 KT WINDS - 030 NM OVER WATER
   RADIUS OF 050 KT WINDS - 095 NM NORTHEAST SEMICIRCLE
                                   OVER WATER
                            080 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE
                                   OVER WATER
                            150 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 285 DEG/ 13 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   030000Z3 --- 14.5N0 142.9E6
   MAX SUSTAINED WINDS - 150 KT, GUSTS 180 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 095 NM NORTHEAST SEMICIRCLE
                            075 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE
                                   OVER WATER
                            150 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 285 DEG/ 12 KTS
    ---
   72 HRS, VALID AT:
   040000Z4 --- 15.6N2 138.0E2
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 095 NM NORTHEAST SEMICIRCLE
                            075 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 175 NM NORTHEAST SEMICIRCLE
                            145 NM ELSEWHERE
    ---
REMARKS:
010300Z4 POSITION 11.6N8  152.5E3
SUPER TYPHOON KEITH (29W) IS MOVING WEST-NORTHWESTWARD AT
15 KNOTS. THERE IS NO SIGNIFICANT CHANGE IN FORECAST
PHILOSOPHY. THE SYSTEM, ALTHOUGH STILL EXPECTED TO SLOW
SLIGHTLY WITHIN 12 HOURS, HAS MAINTAINED SPEED SINCE THE
LAST WARNING. WIND RADII HAVE BEEN EXPANDED BASED ON A
311938Z5 MICROWAVE IMAGER PASS. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 010000Z IS 36 FEET. REFER TO WWPW30 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT
010900Z0 (DTG 010753Z6), 011500Z7 (DTG 011353Z3),
012100Z4 (DTG 011953Z9) AND 020300Z5 (DTG 020153Z1).
REFER TO TROPICAL STORM LINDA (30W) WARNINGS (WTPN32
PGTW) FOR SIX-HOURLY UPDATES.//

AUTODIN MESSAGE RECEIVD AT AFGWC: RUHGSGG28553050153

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