Subject: Pacific-NW: 1. Super Typhoon Keith (29w) Warning Nr 027

From: SIU Weather Processor <[email-masked]>
Date: Mon, 3 Nov 1997 04:47:27 -0600

505
WTPN31 PGTW 030900
1. SUPER TYPHOON KEITH (29W) WARNING NR 027
   02 ACTIVE TROPICAL CYCLONES IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---

PAGE 03 RUHGSGG3839 UNCLAS
   WARNING POSITION:
   030600Z9 --- 15.7N3 140.5E0
     MOVEMENT PAST SIX HOURS - 280 DEGREES AT 12 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 145 KT, GUSTS 175 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 070 NM EAST SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM EAST SEMICIRCLE
                            105 NM ELSEWHERE
   REPEAT POSIT: 15.7N3 140.5E0
    ---
   FORECASTS:
   12 HRS, VALID AT:
   031800Z2 --- 16.3N0 138.5E7
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE

PAGE 04 RUHGSGG3839 UNCLAS
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM NORTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 295 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   040600Z0 --- 17.1N9 136.6E6
   MAX SUSTAINED WINDS - 135 KT, GUSTS 165 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 - 140 NM NORTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 315 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   041800Z3 --- 18.0N9 135.6E5
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST SEMICIRCLE

PAGE 05 RUHGSGG3839 UNCLAS
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM NORTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 335 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   050600Z1 --- 19.3N3 135.0E9
   MAX SUSTAINED WINDS - 125 KT, GUSTS 150 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 - 140 NM EAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 000 DEG/ 07 KTS
    ---
   72 HRS, VALID AT:
   060600Z2 --- 22.1N5 135.1E0
   MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
   RADIUS OF 100 KT WINDS - 020 NM

PAGE 06 RUHGSGG3839 UNCLAS
   RADIUS OF 050 KT WINDS - 065 NM EAST SEMICIRCLE
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 135 NM EAST SEMICIRCLE
                            105 NM ELSEWHERE
    ---
REMARKS:
030900Z2 POSITION 15.8N4  140.0E5
SUPER TYPHOON KEITH (29W) IS MOVING WEST-NORTHWESTWARD AT
12 KNOTS. THE SYSTEM NOW DISPLAYS A CLOUD FILLED EYE,
INDICATIVE OF CURRENT WEAKENING TREND. THERE ARE NO
SIGNIFICANT CHANGES TO FORECAST PHILOSOPHY. RECURVATURE
IS EXPECTED TO BEGIN BETWEEN 24 AND 36 HOURS. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 030600Z IS 42 FEET. REFER TO
WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT
WARNINGS AT 031500Z9 (DTG 031353Z5), 032100Z6 (DTG
031953Z1), 040300Z7 (DTG 040153Z3) AND 040900Z3 (DTG
040753Z9). REFER TO TYPHOON LINDA (30W) WARNINGS (WTPN32
PGTW) FOR SIX-HOURLY UPDATES.//
BT
#3839

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