簽到天數: 971 天 [LV.10]以壇為家III
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jwpk9899|2012-12-31 10:33
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他....他終於MEDIUM了
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 9.4S 85.2E
IS NOW LOCATED NEAR 9.3S 85.8E, APPROXIMATELY 790 NM EAST OF DIEGO
GARCIA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS AN EXPOSED
LOW-LEVEL CIRCULATION CENTER (LLCC) WITH FLARING DEEP CONVECTION
OVER THE WEST QUADRANT. A 301534Z METOP-A IMAGE INDICATES AN
IMPROVING, DEFINED LLCC WITH CONVECTIVE BANDING WRAPPING INTO THE
BROAD CENTER. A 301534Z ASCAT IMAGE DEPICTS AN ELONGATED CIRCULATION
WITH 20 TO 25 KNOT WINDS. OVER THE PAST 24 HOURS, THE UPPER-LEVEL
ENVIRONMENT HAS IMPROVED SLIGHTLY WITH A WEAK ANTICYCLONE POSITIONED
NEAR THE LLCC AND IMPROVED POLEWARD OUTFLOW INTO A DEEP SHORTWAVE
TROUGH TO THE SOUTH. HOWEVER, VERTICAL WIND SHEAR HAS REMAINED
MODERATE TO STRONG (20 TO 30 KNOTS). MAXIMUM SUSTAINED SURFACE WINDS
ARE ESTIMATED AT 20 TO 25 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 REMAINS MEDIUM. |
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