WTXS32 PGTW 210900
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ: TROPICAL CYCLONE 15S (GAMEDE) WARNING NR 001
REF/A/NAVPACMETOCCEN PEARL HARBOR HI/201951Z FEB 07//
AMPN/TROPICAL CYCLONE FORMATION ALERT//
1. TROPICAL CYCLONE 15S (GAMEDE) WARNING NR 001
02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
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WARNING POSITION:
210600Z --- NEAR 14.3S 70.7E
MOVEMENT PAST SIX HOURS - 270 DEGREES AT 15 KTS
POSITION ACCURATE TO WITHIN 060 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
REPEAT POSIT: 14.3S 70.7E
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FORECASTS:
12 HRS, VALID AT:
211800Z --- 14.1S 68.0E
MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 265 DEG/ 12 KTS
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24 HRS, VALID AT:
220600Z --- 14.2S 65.5E
MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 265 DEG/ 12 KTS
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36 HRS, VALID AT:
221800Z --- 14.5S 63.0E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
065 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 260 DEG/ 12 KTS
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EXTENDED OUTLOOK:
48 HRS, VALID AT:
230600Z --- 14.9S 60.5E
MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
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 - 080 NM NORTHEAST QUADRANT
085 NM SOUTHEAST QUADRANT
090 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
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REMARKS:
210900Z POSITION NEAR 14.3S 70.0E.
TROPICAL CYCLONE (TC) 15S (GAMEDE), LOCATED APPROXIMATELY 430 NM
SOUTH-SOUTHWEST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 15 KNOTS
OVER THE PAST SIX HOURS. RECENT ANIMATED MULTISPECTRAL AND WATER
VAPOR SATELLITE IMAGERY INDICATE THAT THIS SYSTEM HAS BECOME MORE
ORGANIZED OVER THE PAST SIX HOURS, WITH DEEP CONVECTION FLARING
NEAR THE CENTER OF CIRCULATION AND CONVECTIVE BANDING PERSISTING
ON THE NORTHWESTERN AND SOUTHEASTERN PERIPHERIES. TC 15S IS EX-
PECTED TO CONTINUE TRACKING GENERALLY WESTWARD ALONG THE NORTHERN
PERIPHERY OF A SUBTROPICAL RIDGE ANCHORED SOUTHEAST OF LA REUNION
THROUGHOUT THE FORECAST PERIOD. THE SYSTEM WILL GRADUALLY INTENSI-
FY UNDER THE INFLUENCE OF GOOD EQUTORWARD OUTFLOW AND LOW VERTICAL
WIND SHEAR OVER THE NEXT 36 HOURS. BETWEEN TAU 36 AND TAU 48, THE
SYSTEM SHOULD BEGIN TO INTENSIFY MORE RAPIDLY AS IT APPROACHES AN
AREA OF IMPROVED POLEWARD DIFFLUENCE ASSOCIATED WITH A DEEP LOW
PRESSURE AREA CURRENTLY EAST OF MADAGASCAR. THIS WARNING SUPER-
SEDES AND CANCELS REF A, NAVPACMETOCCEN 201951Z FEB 07 TROPICAL
CYCLONE FORMATION ALERT (WTXS21 PGTW 202000) MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 210600Z IS 10 FEET. NEXT WARNINGS AT 212100Z AND
220900Z. REFER TO TROPICAL CYCLONE 14S (FAVIO) WARNINGS
(WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES.//