簽到天數: 971 天 [LV.10]以壇為家III
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jwpk9899|2012-5-30 18:43
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另外 MEDIUM了
(1) THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 8.5N
132.4E, IS NOW LOCATED NEAR 9.2N 131.6E, APPROXIMATELY 205 NM
NORTHWEST OF PALAU. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI)
SHOWS PERSISTENT DEEP CONVECTION BUILDING ALONG THE SOUTHERN
PERIPHERY OF THE DEVELOPING LOW LEVEL CIRCULATION CENTER (LLCC). THE
LLCC HAS BEEN SLOWLY DRIFTING TO THE WEST-NORTHWEST, AND A 300315Z
OSCAT PASS INDICATED ELONGATED TROUGHING EXTENDING FROM A WEAK,
BROAD CIRCULATION ON THE EASTERN COAST OF THE PHILIPPINES TO THE
NORTHWEST OF PALAU. WINDS ALONG THE CENTRAL CORE OF THE LLCC ARE
BETWEEN 10-15 KNOTS IN THE SHARPEST REGION OF TURNING. UPPER LEVEL
ANALYSIS INDICATES THE LLCC REMAINS UNDER THE NORTHEASTERN QUADRANT
OF A NEAR-EQUATORIAL RIDGE, AND IS PROVIDING EXCELLENT EQUATORWARD
OUTFLOW ALOFT IN A LOW TO MODERATE VERTICAL WIND SHEAR ENVIRONMENT.
SEA SURFACE TEMPERATURES (SSTS) ARE VERY FAVORABLE (30 DEGREES
CELSIUS) IN THE VICINITY OF THE CIRCULATION. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. BASED ON RECENT
IMPROVEMENTS IN THE LOW LEVEL STRUCTURE OVER THE PAST FEW HOURS, THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM. |
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