簽到天數: 3475 天 [LV.Master]伴壇終老
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king111807|2025-9-17 12:35
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JTWC評級Low
AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 22.9N
167.1E, APPROXIMATELY 221 NM NORTH OF WAKE ISLAND. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY DEPICTS A PARTIALLY OBSCURED, LOWER
LEVEL CIRCULATION (LLC) WITH FLARING CONVECTION, PRIMARILY IN THE
SOUTHERN SEMICIRCLE. A RECENT 162209Z ASCAT PASS SHOWS A SHARP TROUGH
WITH A SWATH OF WINDS OF 15-20 KNOTS ALONG THE SOUTHEAST OF THE
TROUGH. ENVIRONMENTAL ANALYSIS REVEALS FAVORABLE CONDITIONS FOR
DEVELOPMENT WITH LOW VERTICAL WIND SHEAR (VWS) OF 10-15 KNOTS, GOOD
POLEWARD UPPER-LEVEL OUTFLOW, AND WARM SEA SURFACE TEMPERATURES (SST)
OF 29-30 C. GLOBAL MODELS AGREE ON A GENERAL WEST-NORTHWESTWARD
TRACK, BUT ARE SPLIT ON DEVELOPMENT, WITH ENSEMBLES SHOWING MORE
INTENSIFICATION THAN THE DETERMINISTIC ECMWF AND GFS. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 KNOTS. MINIMUM SEA
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1013 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS LOW.
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