alu

基本資料  
編號　　　　：91 W
擾動編號日期：2025 年 07 月 26 日 02 時
撤編日期　　：2025 年 07 月 00 日 00 時
91W INVEST 250725 1800 27.8N 132.6E WPAC 15 1000

king111807

JTWC評級Low

AN AREA OF CONVECTION (INVEST 91W) HAS PERSISTED NEAR 28.4N
133.2E, APPROXIMATELY 152 NM EAST OF AMAMI OSHIMA. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A DISORGANIZED AREA OF
FLARING CONVECTION AND LOW-LEVEL CONVERGENCE WITH SLIGHT CURVATURE ON
THE SOUTH-SOUTHEAST PERIPHERY OF INVEST 91W. A 260146Z ASCAT-B PASS
REVEALS A BROAD AND ASYMMETRIC WIND FIELD. ENVIRONMENTAL ANALYSIS
INDICATES MARGINAL TO FAVORABLE CONDITIONS FOR DEVELOPMENT WITH
MODERATE VWS (VERTICAL WIND SHEAR), GOOD EQUATORWARD OUTFLOW ALOFT,
AND WARM (30-31C) SEA SURFACE TEMPERATURE. GLOBAL MODELS ARE IN
AGREEMENT WITH INVEST 91W SLOWLY DEVELOPING OVER THE NEXT 48 HOURS.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 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 IS UPGRADED TO LOW.