Subject: Pacific-NW: 1. Typhoon Keith (29w) Warning Nr 039

From: SIU Weather Processor <[email-masked]>
Date: Thu, 6 Nov 1997 02:52:26 -0600

523
WTPN31 PGTW 060900
1. TYPHOON KEITH (29W) WARNING NR 039
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   060600Z2 --- 21.4N7 137.0E1
     MOVEMENT PAST SIX HOURS - 035 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 110 NM SOUTHWEST QUADRANT
                            140 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM SOUTHWEST QUADRANT
                            220 NM ELSEWHERE
   REPEAT POSIT: 21.4N7 137.0E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   061800Z5 --- 24.0N6 139.8E1
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 050 KT WINDS - 130 NM NORTHEAST SEMICIRCLE
                            100 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 220 NM NORTHEAST SEMICIRCLE
                            180 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 055 DEG/ 22 KTS
    ---
   24 HRS, VALID AT:
   070600Z3 --- 26.4N2 143.8E6
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 050 KT WINDS - 100 NM EAST SEMICIRCLE
                            070 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 220 NM EAST SEMICIRCLE
                            160 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 055 DEG/ 22 KTS
    ---
   36 HRS, VALID AT:
   071800Z6 --- 28.9N9 148.0E3
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 090 NM SOUTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 200 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 055 DEG/ 25 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   080600Z4 --- 31.5N9 152.9E7
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM SOUTHEAST SEMICIRCLE
                            100 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 055 DEG/ 26 KTS
    ---
   72 HRS, VALID AT:
   090600Z5 --- 36.9N8 163.8E8
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   EXTRATROPICAL
    ---
REMARKS:
060900Z5 POSITION 22.1N5  137.7E8
TYPHOON KEITH (29W) IS MOVING NORTHEASTWARD AT 13 KNOTS.
THE SYSTEM HAS BEGUN ITS MOVEMENT INTO THE ACCELERATING
WESTERLIES. THERE IS NO SIGNIFICANT CHANGE TO FORECAST
PHILOSOPHY. TY KEITH (29W) IS EXPECTED TO BE
EXTRATROPICAL WITHIN 72 HOURS. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 060600Z IS 26 FEET. REFER TO WWPW30 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT
061500Z2 (DTG 061353Z8), 062100Z9 (DTG 061953Z4),
070300Z0 (DTG 070153Z6) AND 070900Z6 (DTG 070753Z2).//

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