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Heigo|2020-10-16 14:55
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本帖最後由 Heigo 於 2020-10-16 14:57 編輯
JTWC 降評 LowTHE AREA OF CONVECTION (INVEST 94W) PREVIOUSLY LOCATED
NEAR 15.0N 118.4E IS NOW LOCATED NEAR 16.2N 112.4E, APPROXIMATELY
242 NM EAST OF DANANG, VIETNAM. ANIMATED MULTISPECTRAL SATELLITE
IMAGERY DEPICTS A NEAR FULLY-EXPOSED LOW LEVEL CIRCULATION CENTER
(LLCC) WITH FLARING DEEP CONVECTION BEING SHEARED TO THE WEST. A
160201Z MHS METOP-B 89GHZ REVEALS LITTLE TO NO ORGANIZED DEEP
CONVECTION WITH A SMALL AREA OF DEEP CONVECTION NEAR THE LLCC. A
160046Z METOP-A ASCAT PASS SHOWS A SMALL, WEAK CIRCULATION EMBEDDED
IN THE NORTHERN PERIPHERY OF A BROADER, WEAK CIRCULATION. THE ASCAT
PASS REVEALS 25 TO 30 KNOT WINDS ON THE NORTHERN SIDE OF 94W WITH
SIGNIFICANTLY WEAKER (5 TO 10 KNOT) WINDS TO THE SOUTH. 94W IS
CURRENLTY IN A MARGINAL ENVIRONMENT WITH DISORGANIZED UPPER LEVEL
OUTFLOW, MODERATE (15 TO 20 KNOT) VERTICAL WIND SHEAR, AND WARM (28
TO 29 CELSIUS) SEA SURFACE TEMPERATURES. GLOBAL MODELS ARE IN FAIR
AGREEMENT THAT 94W WILL REMAIN LARGELY STATIONARY FOR THE NEXT
COUPLE DAYS WITH SOME SLIGHT CONSOLIDATION, BEFORE CONTINUING WEST,
MOVING OVER VIETNAM. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED
AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE
NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT
TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS DOWNGRADED TO LOW. SEE
REF A (WTPN21 PGTW 160700) FOR FURTHER DETAILS.
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