簽到天數: 2414 天 [LV.Master]伴壇終老
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0908morakot|2016-8-16 15:57
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JTWC降評Low
(2) THE AREA OF CONVECTION (INVEST 96W) PREVIOUSLY LOCATED
NEAR 19.2N 162.4E, IS NOW LOCATED NEAR 18.9N 162.1E, APPROXIMATELY
257 NM WEST OF WAKE ISLAND. ANIMATED MULTI-SPECTRAL SATELLITE
IMAGERY AND A 152314Z METOP-A 89GHZ MICROWAVE PASS DEPICT SHALLOW
CONVECTION ALONG EASTERN AND SOUTHERN PERIPHERY OF A BROAD AND
ELONGATED LOW-LEVEL CIRCULATION CENTER (LLCC), EVIDENT ON A 152315Z
50KM METOP-A ASCAT PASS. WINDS ARE 5 TO 10 KNOTS WITHIN THE CENTER
AND 15 TO 25 KNOTS EAST OF THAN. UPPER-LEVEL ANALYSIS REVEALS A TUTT
CELL SIMULTANEOUSLY CREATING SUBSIDENCE AND HIGH (20 TO 30 KNOT)
VERTICAL WIND SHEAR. UPPER-LEVEL DIFFLUENCE SUPPORTED BY RIDGING
EAST AND WEST OF THE SYSTEM IS CREATING POLEWARD AND EQUATORWARD
OUTFLOW, HOWEVER, NOT SIGNIFICANT ENOUGH TO OFFSET THE HIGH VWS.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. DUE TO
THE DEGRADED ENVIRONMENTAL CONDITION, THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS DOWNGRADED TO LOW.
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