簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2016-9-26 13:52
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JTWC評級Low
B. TROPICAL DISTURBANCE SUMMARY:
(1) AN AREA OF CONVECTION (INVEST 98W) HAS PERSISTED NEAR
15.6N 157.9E, APPROXIMATELY 780 NM EAST-NORTHEAST OF GUAM. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY DEPICTS A WEAK EXPOSED LOW LEVEL
CIRCULATION CENTER (LLCC) WITH DEEP CONVECTION ALONG THE SOUTHERN
PERIPHERY. A 252320Z METOP-B 89GHZ IMAGE DEPICTS ISOLATED CONVECTION
OVER THE SOUTH QUADRANT OF THE LLCC. A 252321Z ASCAT METOP-B IMAGE
SHOWED AN ELONGATED CIRCULATION WITH 20-25 KNOTS OF GRADIENT EAST-
SOUTHEASTERLY WINDS ON THE NORTHEAST QUADRANT WITH 10-15 KNOTS
ELSEWHERE. THE SYSTEM IS LOCATED IN A MARGINAL ENVIRONMENT WITH LOW
TO MODERATE VERTICAL WIND SHEAR AND FAIR DIVERGENCE ALOFT. GLOBAL
MODELS SHOW LIMITED DEVELOPMENT AS THE SYSTEM TRACKS WESTWARD OVER
THE NEXT 2-3 DAYS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT
10 TO 15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR
1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.
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