Subject: Pacific-NW: 1. Typhoon Paka (05c) Warning Nr 072

From: SIU Weather Processor <[email-masked]>
Date: Sat, 20 Dec 1997 04:02:37 -0600

157
WTPN31 PGTW 200900
1. TYPHOON PAKA (05C) WARNING NR 072
   01 ACTIVE TROPICAL CYCLONE IN NORTHWESTPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   200600Z8 --- 17.1N9 133.4E1
     MOVEMENT PAST SIX HOURS - 310 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   RADIUS OF 050 KT WINDS - 075 NM NORTH QUADRANT
                            045 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM NORTH QUADRANT

PAGE 03 RUEDMCC4238 UNCLAS //NO3145//
                            070 NM ELSEWHERE
   REPEAT POSIT: 17.1N9 133.4E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   201800Z1 --- 17.6N4 132.6E2
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 050 KT WINDS - 070 NM NORTH QUADRANT
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM NORTH QUADRANT
                            065 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 305 DEG/ 05 KTS
    ---
   24 HRS, VALID AT:
   210600Z9 --- 18.1N0 131.8E3
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 050 KT WINDS - 055 NM NORTH QUADRANT
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM NORTH QUADRANT
                            050 NM ELSEWHERE

PAGE 04 RUEDMCC4238 UNCLAS //NO3145//
   VECTOR TO 36 HR POSIT: 285 DEG/ 06 KTS
    ---
   36 HRS, VALID AT:
   211800Z2 --- 18.4N3 130.5E9
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 045 NM NORTH QUADRANT
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 110 NM NORTH QUADRANT
                            040 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 255 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   220600Z0 --- 18.1N0 129.2E4
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER
WATER
   RADIUS OF 035 KT WINDS - 080 NM NORTH QUADRANT
                            035 NM ELSEWHERE
   VECTOR TO 72 HR POSIT: 245 DEG/ 06 KTS

PAGE 05 RUEDMCC4238 UNCLAS //NO3145//
    ---
   72 HRS, VALID AT:
   230600Z1 --- 17.0N8 126.9E8
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER
WATER
    ---
REMARKS:
200900Z1 POSITION: 17.2N 133.3E
TYPHOON PAKA IS MOVING NORTHWESTWARD AT 5 KNOTS.  WARNING
POSITION AND INTENSITY ARE BASED ON A 200530Z0 VISIBLE
SATELLITE FIX. PAKA HAS SLOWED DOWN SINCE THE LAST
WARNING. THE SYSTEM IS NOW FORECAST TO MOVE SLIGHTLY
SLOWER AND MORE NORTHWARD THAN INDICATED ON THE PREVIOUS
FORECAST, HOWEVER THE OVERALL TRACK SCENARIO REMAINS THE
SAME. PAKA SHOULD WEAKEN RAPIDLY AND TURN TOWARD THE
SOUTH AS THE CONVECTION BEGINS TO SHEAR FROM THE LOW
LEVEL CIRCULATION CENTER. MAXIMUM SIGNIFICANT WAVE HEIGHT
AT 200600Z8 IS 20 FEET. REFER TO WWPW30 PGFW FOR
ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT

PAGE 06 RUEDMCC4238 UNCLAS //NO3145//
201500Z8, 202100Z5, 210300Z6 AND 210900Z2.//
BT
#4238

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