Subject: Pacific-NW: 1. Super Typhoon Paka (05c) Warning Nr 052

From: SIU Weather Processor <[email-masked]>
Date: Mon, 15 Dec 1997 02:29:40 -0600

088
WTPN31 PGTW 150900
1. SUPER TYPHOON PAKA (05C) WARNING NR 052
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   150600Z2 --- 12.6N9 149.5E9
     MOVEMENT PAST SIX HOURS - 280 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 030 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 - 060 NM NORTHEAST SEMICIRCLE

PAGE 03 RUEOMCA1504 UNCLAS //NO3145//
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM NORTHEAST SEMICIRCLE
                            070 NM ELSEWHERE
   REPEAT POSIT: 12.6N9 149.5E9
    ---
   FORECASTS:
   12 HRS, VALID AT:
   151800Z5 --- 13.0N4 147.2E4
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 065 NM NORTHEAST SEMICIRCLE
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 185 NM NORTHEAST SEMICIRCLE
                            075 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 280 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   160600Z3 --- 13.3N7 145.1E1
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM

PAGE 04 RUEOMCA1504 UNCLAS //NO3145//
   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 190 NM NORTHEAST SEMICIRCLE
                            080 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 275 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   161800Z6 --- 13.4N8 143.5E3
   MAX SUSTAINED WINDS - 120 KT, GUSTS 145 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 - 195 NM NORTHEAST SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 270 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   170600Z4 --- 13.4N8 141.8E4
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT

PAGE 05 RUEOMCA1504 UNCLAS //NO3145//
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 075 NM NORTH SEMICIRCLE
                            055 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 195 NM NORTH SEMICIRCLE
                            090 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 270 DEG/ 05 KTS
    ---
   72 HRS, VALID AT:
   180600Z5 --- 13.4N8 139.8E1
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 070 NM NORTH SEMICIRCLE
                            050 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 190 NM NORTH SEMICIRCLE
                            085 NM ELSEWHERE
    ---
REMARKS: 150900Z5 POSITION:  12.7N0 148.9E2
LATEST VISUAL SATELLITE IMAGERY INDICATES THAT SUPER
TYPHOON PAKA (05C) HAS SLOWED ITS FORWARD SPEED TO 13
KNOTS WHILE MOVING TOWARDS THE WEST-NORTHWEST. THE SYSTEM
IS EXPECTED TO CONTINUE SLOWING AND MOVING WESTWARD

PAGE 06 RUEOMCA1504 UNCLAS //NO3145//
THROUGH THE FORECAST PERIOD. SUPER TYPHOON PAKA (05C) IS
FORECAST TO MAINTAIN ITS CURRENT INTENSITY FOR THE NEXT
12 HOURS, FOLLOWED BY A WEAKENING TREND DUE TO THE
PASSAGE OF A SHORTWAVE TROUGH TO THE NORTH AND A SLIGHT
INCREASE IN VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT 150600Z IS 36 FEET. REFER TO WWPW30 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT
151500Z2 (DTG 151351Z), 152100Z9 (DTG 151951Z), 160300Z0
(DTG 160151Z), AND 160900Z6 (DTG 160751Z).//
BT
#1504

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