簽到天數: 971 天 [LV.10]以壇為家III
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jwpk9899|2013-1-21 21:23
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他跟94S一起MEDIUM了超神奇 目前中心在陸地上捏(1) AN AREA OF CONVECTION HAS PERSISTED NEAR 18.6S 122.1E, APPROXIMATELY 495 NM EAST-NORTHEAST OF LEARMONTH, AUSTRALIA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS A DEVELOPING LOW LEVEL CIRCULATION CENTER (LLCC) THAT HAS BEEN SLOWLY TRACKING ALONG THE WESTERN COAST OF AUSTRALIA FOR THE PAST 12 TO 18 HOURS. CONVECTION HAS BEEN FLARING OVER THE WESTERN HALF OF THE LLCC AS THE AIR FLOW INTO THE LLCC PICKS UP MOISTURE FROM THE INDIAN OCEAN. OBSERVATIONS NEAR THE LLCC INDICATE WIND SPEEDS ARE BETWEEN 10 TO 15 KNOTS WITH A CENTRAL PRESSURE NEAR 1002 MB. UPPER LEVEL ANALYSIS INDICATES THE LLCC IS LOCATED BENEATH A BUILDING ANTICYCLONE, WHICH IS PROVIDING LOW (5 TO 10 KNOTS) VERTICAL WIND SHEAR (VWS) AND GOOD RADIAL OUTFLOW. SEA SURFACE TEMPERATURES (SSTS) OFF THE COAST ARE 29 TO 30 DEGREES CELSIUS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. DUE TO THE GOOD LOW LEVEL ORGANIZATION AND THE CLOSE PROXIMITY OF THE LLCC TO THE WARM INDIAN OCEAN WATERS, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS MEDIUM.
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