簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2014-8-28 14:14
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JTWC再降評Low
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 18.7N
111.6E, IS NOW LOCATED NEAR 20.4N 107.4E, APPROXIMATELY 94 NM EAST-
SOUTHEAST OF HANOI, VIETNAM. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY SHOWS FLARING CONVECTION OVER THE LOW LEVEL CIRCULATION
CENTER (LLCC) STREAMING TO THE SOUTHWEST UNDER THE SOUTHEASTERN
QUADRANT OF AN UPPER LEVEL ANTICYCLONE LOCATED OVER NORTHERN
VIETNAM. THE ANTICYCLONE IS CREATING MODERATE LEVELS OF VERTICAL
WIND SHEAR (15 TO 20 KNOTS). THE TRACK SPEED HAS BEEN INCREASING
OVER THE PAST 12 HOURS AND IS QUICKLY APPROACHING THE NORTHERN COAST
OF VIETNAM. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO
20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006
MB. DUE TO THE RAPID APPROACH OF THE LLCC TO THE COAST OF VIETNAM,
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS HAS BEEN DOWNGRADED TO LOW.
03Z風場掃出部分35KT風力
中心現在在北部灣
未來持續偏西移動並登陸越南
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