簽到天數: 815 天 [LV.10]以壇為家III
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martin191919|2013-8-9 00:21
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真的TCFA
(1) THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 12.1N 136.7E, IS NOW LOCATED NEAR 12.4N 136.5E, APPROXIMATELY 300 NM NORTH-NORTHEAST OF PALAU. RECENT INFRARED SATELLITE IMAGERY DEPICTS A BROAD, YET CONSOLIDATING, LOW-LEVEL CIRCULATION CENTER (LLCC) WITH A FRAGMENTED BANDING FEATURE ACROSS THE NORTHERN SEMI-CIRCLE AND PERSISTENT CENTRAL CONVECTION. A 081100Z SSMIS 37GHZ MICROWAVE IMAGE REVEALS CENTRAL CONVECTION CONTINUES TO IMPROVE WITH FORMATIVE BANDING FEATURES THAT ARE BEGINNING TO WRAP INTO THE LLCC. A 081159Z ASCAT PASS REVEALS A BROAD CIRCULATION WITH 15 TO 20 KNOT WINDS NEAR THE CONSOLIDATING LLCC. SEA SURFACE TEMPERATURES IN THE AREA ARE FAVORABLE FOR DEVELOPMENT AT 28 TO 30 DEGREES CELSIUS. UPPER LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH A POINT SOURCE LOCATED JUST EAST OF THE SYSTEM WHICH IS PROVIDING DIFFLUENT EASTERLY FLOW AND WEAK (05 TO 10 KNOTS) VERTICAL WIND SHEAR. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH.
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