Subject: Pacific-NW: 1. Typhoon Keith (29w) Warning Nr 042

From: SIU Weather Processor <[email-masked]>
Date: Thu, 6 Nov 1997 21:52:31 -0600

772
WTPN31 PGTW 070300
1. TYPHOON KEITH (29W) WARNING NR 042
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   070000Z7 --- 24.6N2 139.6E9
     MOVEMENT PAST SIX HOURS - 040 DEGREES AT 18 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 050 KT WINDS - 090 NM EAST SEMICIRCLE
                            075 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 215 NM EAST SEMICIRCLE
                            175 NM ELSEWHERE
   REPEAT POSIT: 24.6N2 139.6E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   071200Z0 --- 27.4N3 142.8E5
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 050 KT WINDS - 075 NM EAST SEMICIRCLE
                            060 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 220 NM EAST SEMICIRCLE
                            170 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 060 DEG/ 23 KTS
    ---
   24 HRS, VALID AT:
   080000Z8 --- 29.7N8 147.4E6
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 065 NM EAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 200 NM EAST SEMICIRCLE
                            160 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 060 DEG/ 27 KTS
    ---
   36 HRS, VALID AT:
   081200Z1 --- 32.3N8 153.0E9
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 035 KT WINDS - 190 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 065 DEG/ 32 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   090000Z9 --- 34.8N5 160.0E7
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   EXTRATROPICAL
   VECTOR TO 72 HR POSIT: 065 DEG/ 38 KTS
    ---
   72 HRS, VALID AT:
   100000Z1 --- 39.7N9 178.1E7
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   EXTRATROPICAL
    ---
REMARKS:
070300Z0 POSITION 25.3N0  140.4E9
TYPHOON KEITH (29W) IS MOVING NORTHEASTWARD AT 18 KNOTS.
THE SYSTEM IS EXPECTED TO CONTINUE A NORTHEASTWARD TO
EAST-NORTHEASTWARD TRACK AND ACCELERATE. TYPHOON KEITH
(29W) IS FORECAST TO GRADUALLY WEAKEN AND BECOME
EXTRATROPICAL BY THE 48-HOUR POSITION. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 070000Z IS 26 FEET. REFER TO
WWPW30 PGFW FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT
WARNINGS AT 070900Z6 (DTG 070753Z2), 071500Z3 (DTG
071353Z9), 072100Z0 (DTG 071953Z5) AND 080300Z1 (DTG
080153Z7).//

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