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

From: SIU Weather Processor <[email-masked]>
Date: Fri, 25 Feb 2005 02:02:54 -0600

WTPS31 PGTW 250900
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 20P (PERCY) WARNING NR 002
   01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   250600Z3 --- NEAR 8.6S4 177.6W1
     MOVEMENT PAST SIX HOURS - 110 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT
                            110 NM SOUTHEAST QUADRANT
                            110 NM SOUTHWEST QUADRANT
                            095 NM NORTHWEST QUADRANT
   REPEAT POSIT: 8.6S4 177.6W1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   251800Z6 --- 9.3S2 175.7W0
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 035 NM
   RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            120 NM SOUTHWEST QUADRANT
                            105 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 110 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   260600Z4 --- 9.9S8 174.0W2
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 064 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 040 NM
   RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT
                            130 NM SOUTHEAST QUADRANT
                            130 NM SOUTHWEST QUADRANT
                            115 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 115 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   261800Z7 --- 10.6S7 172.6W6
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 045 NM
   RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT
                            140 NM SOUTHEAST QUADRANT
                            140 NM SOUTHWEST QUADRANT
                            125 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 125 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   270600Z5 --- 11.5S7 171.2W1
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM
   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
                            145 NM SOUTHEAST QUADRANT
                            145 NM SOUTHWEST QUADRANT
                            130 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 140 DEG/ 07 KTS
    ---
   72 HRS, VALID AT:
   280600Z6 --- 13.8S2 169.3W9
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM
   RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
                            145 NM SOUTHEAST QUADRANT
                            145 NM SOUTHWEST QUADRANT
                            130 NM NORTHWEST QUADRANT
    ---
REMARKS:
250900Z6 POSITION NEAR 8.8S6 177.1W6.
TROPICAL CYCLONE (TC) 20P, LOCATED APPROXIMATELY 450 NM NORTHWEST OF
WESTERN SAMOA, HAS TRACKED EAST-SOUTHEASTWARD AT 06 KNOTS OVER THE
PAST 06 HOURS. RECENT ANIMATED ENHANCED WATER VAPOR IMAGERY REVEALS
AN INCREASE IN POLEWARD OUTFLOW AND A SLIGHTLY SMALLER CENTRAL DENSE
OVERCAST. DURING THE NEXT 72 HOURS, TC 20P IS FORECAST TO TRACK
SOUTHEASTWARD, THEN MORE POLEWARD AFTER TAU 72. THE INTENSITY OF THE
SYSTEM WILL INCREASE STEADILY AS IT REMAINS IN AN ENVIRONMENT OF
FAVORABLE OUTFLOW AND LOW VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 250600Z3 IS 18 FEET. NEXT WARNINGS AT 251500Z3,
252100Z0, 260300Z1 AND 260900Z7.//

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