
WTIO31 PGTW 021500
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 01B (NARGIS) WARNING NR 021
01 ACTIVE TROPICAL CYCLONE IN NORTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
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WARNING POSITION:
021200Z --- NEAR 16.0N 94.7E
MOVEMENT PAST SIX HOURS - 085 DEGREES AT 10 KTS
POSITION ACCURATE TO WITHIN 025 NM
POSITION BASED ON EYE FIXED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
025 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
130 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
REPEAT POSIT: 16.0N 94.7E
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FORECASTS:
12 HRS, VALID AT:
030000Z --- 16.6N 96.3E
MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 24 HR POSIT: 050 DEG/ 08 KTS
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24 HRS, VALID AT:
031200Z --- 17.7N 97.6E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
VECTOR TO 36 HR POSIT: 035 DEG/ 09 KTS
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36 HRS, VALID AT:
040000Z --- 19.2N 98.7E
MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
WIND RADII VALID OVER OPEN WATER ONLY
DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
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REMARKS:
021500Z POSITION NEAR 16.2N 95.1E.
TROPICAL CYCLONE (TC) 01B (NARGIS), LOCATED APPROXIMATELY 95 NM
WEST-SOUTHWEST OF YANGON, MYANMAR, HAS TRACKED EASTWARD AT 10 KNOTS
OVER THE PAST 06 HOURS. CURRENT POSITION IS BASED ON THE LATEST
SATELLITE FIXES AND RECENT INFRARED IMAGERY, WHICH INDICATE THE
EYE MADE LANDFALL AT APPROXIMATELY 021200Z. CURRENT INTENSITY IS
BASED ON THE LATEST DVORAK INTENSITY ESTIMATES AND A 021027Z SSMI
IMAGE THAT SHOWS A WEAKENING TREND. AS TC 01B MOVES INLAND, IT
WILL CONTINUE TO WEAKEN AND BEGIN TRACKING NORTHEASTWARD IN
RESPONSE TO A MIDLATITUDE TROUGH APPROACHING FROM THE NORTHWEST.
THE STORM WILL DISSIPATE AS A SIGNIFICANT TROPICAL CYCLONE BY TAU
36. THIS FORECAST IS SUPPORTED BY THE LATEST NUMERICAL GUIDANCE,
WHICH IS IN GOOD AGREEMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
021200Z IS 24 FEET. NEXT WARNINGS AT 022100Z, 030300Z, 030900Z
AND 031500Z.