【菲東】[取消評級] 99W 低緯擾動

howard2639 發表於 2012-5-10 15:11

已撤編!

jwpk9899 發表於 2012-5-10 11:26

NRL撤編了= =
不過首頁定位怎還在
看情況在移好了

howard2639 發表於 2012-5-8 08:25

JTWC降評為LOW了
不過菲西低緯好像窩度也變深了

td965771 發表於 2012-5-7 10:43

升格成MEDIUM

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jwpk9899 發表於 2012-5-6 18:56

RE:多次重新定位 JTWC: LOW

本帖最後由 jwpk9899 於 2012-5-6 18:56 編輯

簡單的說 99W的LLCC很模糊所以NRL一直重新定位

99WINVEST.15kts-1010mb-32N-1320E(今天11點的)
99WINVEST.15kts-1010mb-28N-1323E(今天18點的)

AN AREA OF CONVECTION HAS PERSISTED NEAR 2.8N 132.3E,
APPROXIMATELY 305 NM SOUTH-SOUTHWEST OF PALAU. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY SHOWS A BROAD LOW LEVEL CIRCULATION
CENTER (LLCC) WITH MINIMAL DEEP CONVECTION. SCATTEROMETER DATA
DEPICTS STRONG 15-20 KNOT WESTERLY WINDS DISPLACED SOUTHWEST OF THE
SYSTEM WITH WEAKER 10-15 KNOT CENTRAL WINDS. UPPER LEVEL ANALYSIS
INDICATES THE SYSTEM IS LOCATED BENEATH WEAK RIDGING IN AN AREA OF
LOW VERTICAL WIND SHEAR (05-10 KNOTS) AND MODERATE UPPER LEVEL
DIVERGENCE. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO
15 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008
MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS LOW.