#44 Postby Macrocane » Sun Jan 23, 2011 8:32 am
Latest warning from JTWC:
WTPS31 PGTW 230900
MSGID/GENADMIN/NAVMARFCSTCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE 08P (WILMA) WARNING NR 004//
RMKS/
1. TROPICAL CYCLONE 08P (WILMA) WARNING NR 004
02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
230600Z --- NEAR 12.5S 171.1W
MOVEMENT PAST SIX HOURS - 170 DEGREES AT 05 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
080 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
REPEAT POSIT: 12.5S 171.1W
---
FORECASTS:
12 HRS, VALID AT:
231800Z --- 13.5S 171.0W
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
025 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 185 DEG/ 08 KTS
---
24 HRS, VALID AT:
240600Z --- 15.0S 171.1W
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 210 DEG/ 15 KTS
---
36 HRS, VALID AT:
241800Z --- 17.6S 172.6W
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
035 NM SOUTHEAST QUADRANT
035 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
100 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 235 DEG/ 18 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
250600Z --- 19.7S 175.7W
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 230 DEG/ 13 KTS
---
72 HRS, VALID AT:
260600Z --- 22.9S 179.7E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 210 DEG/ 14 KTS
---
LONG RANGE OUTLOOK:
NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 250 NM
ON DAY 4 AND 350 NM ON DAY 5... AND FOR INTENSITY
NEAR 20 KT EACH DAY.
---
96 HRS, VALID AT:
270600Z --- 27.8S 176.8E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING EXTRATROPICAL
VECTOR TO 120 HR POSIT: 185 DEG/ 14 KTS
---
120 HRS, VALID AT:
280600Z --- 33.4S 176.5E
MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT
WIND RADII VALID OVER OPEN WATER ONLY
EXTRATROPICAL
---
REMARKS:
230900Z POSITION NEAR 12.8S 171.1W.
TROPICAL CYCLONE (TC) 08P (WILMA) LOCATED APPROXIMATELY 110 NM NORTH-
NORTHWEST OF PAGO PAGO, HAS TRACKED SOUTHWARD AT 05 KNOTS OVER THE
PAST SIX HOURS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A
230608Z 91H SSMIS MICROWAVE PASS SHOW A PARTIALLY EXPOSED LOW LEVEL
CIRCULATION CENTER WITH ENHANCED DEEP CONVECTION ALONG THE EASTERN
PERIPHERY OF THE SYSTEM. THE CURRENT POSITION IS BASED ON THE
AFOREMENTIONED MICROWAVE IMAGE WITH FAIR CONFIDENCE. THE CURRENT
INTENSITY IS BASED ON DVORAK ESTIMATES FROM PGTW AND PHFO RANGING
FROM 45 TO 55 KNOTS. UPPER LEVEL ANALYSIS REVEALS THE SYSTEM IS
LOCATED BENEATH THE RIDGE AXIS IN AN AREA OF LOW VERTICAL WIND SHEAR
AND ENHANCED NORTHEASTWARD OUTFLOW. SUBSIDENCE ALONG THE SOUTHERN
FLANK OF TC 08P, ASSOCIATED WITH AN UPPER LEVEL LOW TO THE SOUTH, IS
HINDERING POLEWARD OUTFLOW, WHICH HAS TEMPORARILY STALLED
INTENSIFICATION. TC 08P IS CURRENTLY TRACKING ALONG THE NORTHWESTERN
PERIPHERY OF A DEEP LAYER SUBTROPICAL STEERING RIDGE. TC WILMA IS
FORECAST TO TRACK SOUTHWARD ACROSS PAGO PAGO WITHIN THE NEXT 12 TO
24 HOURS AND GRADUALLY INTENSIFY AS THE UPPER LEVEL LOW TO THE SOUTH
FILLS AND OCEAN HEAT CONTENT (OHC) AND SST VALUES REMAIN FAVORABLE.
THE SYSTEM WILL TRACK GENERALLY SOUTHWESTWARD AFTER TAU 24 AND BEGIN
TO WEAKEN AS IT TRACKS OVER SIGNIFICANTLY COOLER SEA SURFACE
TEMPERATURES AND UNFAVORABLE OHC VALUES WHICH DROP OFF NEAR 25
DEGREES SOUTH. TC 08P IS FORECAST TO UNDERGO EXTRA-TROPICAL
TRANSITION (ET) AFTER TAU 72, BUT COULD DISSIPATE AS A SIGNIFICANT
TROPICAL CYCLONE PRIOR TO COMPLETING ET DUE TO UNFAVORABLE OCEANIC
CONDITIONS. NUMERICAL MODEL GUIDANCE REMAINS TIGHTLY PACKED IN THE
INITIAL TAUS, BUT CONTINUES TO SHOW SPREAD IN THE TIMING OF THE TURN
TO THE SOUTHEAST. THE MOST RECENT MODEL TRACKERS SHOW A SIGNIFICANT
SHIFT FURTHER WEST OF THE PREVIOUS FORECAST TRACK, DEPICTING A
STRONGER RIDGE BUILDING TO THE WEST THEN PREVIOUSLY FORECAST. THE
CURRENT FORECAST REFLECTS THIS SHIFT IN THE MODEL TRACKERS, FAVORING
A TRACK MORE TO THE WEST AND RECURVING THE SYSTEM TO THE SOUTHEAST
JUST NORTH OF NEW ZEALAND RATHER THEN NORTHEAST OF NEW ZEALAND.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 230600Z IS 15 FEET. NEXT WARNINGS
AT 232100Z AND 240900Z. REFER TO TROPICAL CYCLONE 09P (ANTHONY)
WARNINGS (WTPS32 PGTW) FOR TWELVE-HOURLY UPDATES.//
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