簽到天數: 3291 天 [LV.Master]伴壇終老
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t02436|2022-9-27 23:47
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06Z提升評級至Medium
(1) THE AREA OF CONVECTION (INVEST 97W) PREVIOUSLY LOCATED NEAR
14.0N 136.5E IS NOW LOCATED NEAR 17.9N 134.9E, APPROXIMATELY 537 NM
SOUTHWEST OF IWO TO, JAPAN. ANIMATED MULTISPECTRAL SATELLITE IMAGERY
(MSI) AND A 270432Z AMSR2 89 GHZ IMAGE SHOW A BROAD AND ELONGATED
CIRCULATION WITH DISORGANIZED DEEP CONVECTION ALONG THE NORTHERN AND
SOUTHERN QUADRANTS OF THE AREA. AN EARLIER 270030Z ASCAT-B
SCATTEROMETER PASS SHOWED TWO CIRCULATION CENTERS, A BROADER ONE TO
THE SOUTH AND A SMALLER ONE TO THE NORTH. THE BEST TRACK POSITION HAS
BEEN ADJUSTED TO FIT WITHIN THE CENTROID BETWEEN THESE TWO
CIRCULATIONS. THE SAME FEATURES CAN BE SEEN WITHIN THE MSI, WITH A
PARTIALLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) CAN BE SEEN
PEAKING FROM BENEATH THE CIRRUS CLOUD SHIELD AND THE AFOREMENTIONED
MICROWAVE IMAGE. ENVIRONMENTAL ANALYSIS REVEALS THE INVEST IS IN A
FAVORABLE ENVIRONMENT FOR DEVELOPMENT DEFINED BY ZESTY (29-30C) SEA
SURFACE TEMPERATURES, MODERATE POLEWARD OUTFLOW, AND LOW (5-10KTS)
VERTICAL WIND SHEAR. THOUGH SHEAR HAS BEEN ON THE RISE, A LOOK AT THE
850MB VORTICITY CHART SHOWS PLENTY OF PVA TO POSSIBLY FIGHT OFF THE
RISE OF SHEAR. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT INVEST 97W
WILL TRACK NORTHWEST OVER THE NEXT 36-48 HOURS AND CONTINUE TO
CONSOLIDATE AND SLOWLY INTENSIFY. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 17 TO 23 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 UPGRADED TO MEDIUM.
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