0908morakot

基本資料   
編號　　　　：91 W
擾動編號日期：2017 年 07 月 23 日 01 時
撤編日期　　：2017 年 07 月 24 日 21 時
91W.INVEST.15kts.1007mb.7N.137E

allen

就此擾動而言，可能會影響99w的路徑及強度，未來值得觀察

周子堯@FB

JTWC評級Low

(2) AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 7.4N
135.5E, APPROXIMATELY 70 NM EAST OF PALAU. ANIMATED MULTISPECTRAL
SATELLITE IMAGERY AND A 230056Z METOP-B AMSU 89GHZ MICROWAVE IMAGE
SHOW A LARGE AREA OF TROUGHING WITH VERY BROAD LOW LEVEL TURNING.
UPPER-LEVEL ANALYSIS REVEALS A MARGINALLY FAVORABLE ENVIRONMENT WITH
FAIR DIFFLUENCE ALOFT, LOW VERTICAL WIND SHEAR (10-15KT), AND WARM
SSTS (29-30C). GLOBAL MODELS ARE INDICATING THE DISTURBANCE WILL
TRACK TO THE WEST-NORTHWEST OVER THE NEXT SEVERAL DAYS BUT ARE
DIVIDED AS TO WHETHER IT WILL CONSOLIDATE. ECMWF, UKMET, AND GFS
SHOW THE DISTURBANCE COMBINING WITH INVEST 99W BEFORE MOVING TO THE
NORTH AND CONSOLIDATING, WHILE GSM AND NAVGEM SHOW NO CONSOLIDATION.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 10 TO 15 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1010 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS LOW.

t02436

JTWC取消評級。

(2) THE AREA OF CONVECTION (INVEST 91W) PREVIOUSLY LOCATED
NEAR 7.4N 135.5E, HAS DISSIPATED AND IS NO LONGER SUSPECT FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE IN THE NEXT 24 HOURS.

周子堯@FB

91W的雲系幾乎被99W吸掉了，雲系挺少的
91WINVEST.15kts-1010mb-7.2N-136.4E.