簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2014-2-25 10:55
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評級Low
AN AREA OF CONVECTION HAS PERSISTED NEAR 15.4S 172.7E,
APPROXIMATELY 305 NM WEST-NORTHWEST OF NADI, FIJI. RECENT ANIMATED
MULTISPECTRAL SATELLITE IMAGERY SHOWS DEEP CONVECTION FLARING ALONG
THE NORTHEASTERN PERIPHERY OF AN ELONGATED LOW-LEVEL TROUGH EVIDENT
IN A 242125Z ASCAT PASS. THIS DISTURBANCE LIES BENEATH AN UPPER-
LEVEL RIDGE AXIS, IN AN AREA OF LOW VERTICAL WIND SHEAR AND
FAVORABLE POLEWARD OUTFLOW ALOFT. SEA SURFACE TEMPERATURES NEAR 30
DEGREES CELSIUS AND CYCLONIC HORIZONTAL WIND SHEAR INDUCED BY STRONG
NORTHWESTERLY WINDS EQUATORWARD OF THE DISTURBANCE ALSO FAVOR
DEVELOPMENT. MULTIPLE NUMERICAL MODELS INDICATE TROPICAL CYCLONE
FORMATION WITHIN THE NEXT TWO TO THREE DAYS. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. BECAUSE A CLOSED LOW LEVEL
CIRCULATION CENTER HAS NOT YET DEVELOPED, THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS LOW.
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