簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2023-8-28 17:53
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JTWC 06Z維持TCFA,尚未編號升格。
(1) THE AREA OF CONVECTION (INVEST 93W) PREVIOUSLY LOCATED NEAR
16.4N 143.5E IS NOW LOCATED NEAR 18.0N 143.9E, APPROXIMATELY 316 NM
NORTH OF GUAM. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A
270805Z SSMIS 91 GHZ IMAGE DEPICT A BROAD AREA OF SHARP TROUGHING WITH
PERSISTENT, DEEP CONVECTIVE BANDING HIDING THE PROSPECTIVE LOW LEVEL
CIRCULATON CENTER (LLCC). A 271130Z ASCAT-C PARTIAL PASS SHOWS 15-20KT
WINDS TO THE EAST OF THE ASSESSED CENTER. ENVIRONMENTAL ANALYSIS
REVEALS FAVORABLE CONDITIONS FOR DEVELOPMENT WITH WARM (29-30 C) SST
AND ROBUST POLEWARD OUTFLOW ALOFT OFFSET BY MODERATE (15-20KTS)
VERTICAL WIND SHEAR. GLOBAL MODELS INDICATE 93W WILL TRACK SLOWLY
WESTWARD WITH STEADY DEVELOPMENT OVER THE NEXT 48 HOURS. THE SYSTEM
WILL LIKELY STALL NEAR THE WEST OF THE NORTHERN MARIANAS WITH STRONG
MONSOONAL FLOW PERSISTING OVER THE REGION, AIDING IN ITS DEEPENING AND
DEVELOPMENT. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS REMAINS HIGH. SEE REF C (WTPN21 PGTW
271500) FOR FURTHER DETAILS.
WP, 93, 2023082806, , BEST, 0, 181N, 1429E, 20, 1002, DB, 34, NEQ, 0, 0, 0, 0, 1004, 225, 45, 0, 0, W, 0, , 0, 0, INVEST, S,
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