簽到天數: 1765 天 [LV.Master]伴壇終老
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zjk369|2018-11-19 14:12
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JTWC:再一次升格為MEDIUM
THE AREA OF CONVECTION (INVEST 92W) PREVIOUSLY LOCATED NEAR 2.3N 161.9E, IS NOW LOCATED NEAR 3.7N 158.5E, APPROXIMATELY 449 NM EAST-SOUTHEAST OF CHUUK ISLAND, FSM. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A 190250Z 89GHZ AMSR2 MICROWAVE IMAGE DEPICT PERSISTENT CENTRAL CONVECTION WITH FORMATIVE BANDING WRAPPING INTO A CONSOLIDATING, THOUGH STILL ELONGATED LLCC FROM THE SOUTHWEST. THE UPPER LEVEL ENVIRONMENT IS OVERALL MARGINAL, WITH MODERATE (15-20KTS) VWS OFFSET BY ADEQUATE DIVERGENCE ALOFT DUE TO WESTWARD UPPER LEVEL OUTFLOW. SSTS REMAIN FAVORABLY WARM (28-30C) IN THE EQUATORIAL PACIFIC. GLOBAL MODELS GENERALLY PREDICT 92W WILL REACH TROPICAL DEPRESSION STRENGTH BETWEEN 201200Z AND 221200Z, WITH THE EXCEPTION OF THE GFS AGGRESSIVELY DEPICTING DEVELOPMENT BY 191800Z. 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 MEDIUM.
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