Subject: Pacific-SW: Subj/tropical Cyclone Warning//

From: SIU Weather Processor <[email-masked]>
Date: Thu, 24 Feb 2005 20:49:48 -0600

WTPS31 PGTW 250300
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
REF/A/MY/242051Z4 FEB 05//
AMPN/TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. TROPICAL CYCLONE 20P WARNING NR 001
   01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   250000Z7 --- NEAR 8.4S2 178.2W8
     MOVEMENT PAST SIX HOURS - 105 DEGREES AT 11 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
                            090 NM SOUTHEAST QUADRANT
                            090 NM SOUTHWEST QUADRANT
                            110 NM NORTHWEST QUADRANT
   REPEAT POSIT: 8.4S2 178.2W8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   251200Z0 --- 9.0S9 176.1W5
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT
                            105 NM SOUTHEAST QUADRANT
                            105 NM SOUTHWEST QUADRANT
                            125 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 100 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   260000Z8 --- 9.4S3 174.1W3
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 064 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            120 NM SOUTHWEST QUADRANT
                            135 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 095 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   261200Z1 --- 9.5S4 172.3W3
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 145 NM NORTHEAST QUADRANT
                            125 NM SOUTHEAST QUADRANT
                            125 NM SOUTHWEST QUADRANT
                            140 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 110 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   270000Z9 --- 10.0S1 170.8W6
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
                            130 NM SOUTHEAST QUADRANT
                            130 NM SOUTHWEST QUADRANT
                            145 NM NORTHWEST QUADRANT
    ---
REMARKS:
250300Z0 POSITION NEAR 8.6S4 177.7W2.
TROPICAL CYCLONE (TC) 20P, LOCATED APPROXIMATELY 490 NM NORTHWEST
OF WESTERN SAMOA, HAS TRACKED EAST-SOUTHEASTWARD AT 11 KNOTS OVER
THE PAST 06 HOURS. TC 20P IS FORECAST TO TRACK EAST-SOUTHEASTWARD
THROUGHOUT THE FORECAST PERIOD. THE SYSTEM IS FORECAST TO INTENSIFY
ABOVE THE CLIMATOLOGICAL RATE AS IT HAS DUAL OUTFLOW CHANNELS AND
REMAINS IN AN ENVIRONMENT OF LOW VERTICAL WIND SHEAR. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 250000Z7 IS 12 FEET. THIS WARNING
SUPERSEDES AND CANCELS REF A, NAVPACMETOCCEN 242051Z4FEB05 TROPICAL
CYCLONE FORMATION ALERT (WTPS21 PGTW 242100) NEXT WARNINGS AT
251500Z3 AND 260300Z1.//

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