ABIO10 PGTW 161800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN 
OCEAN/161800Z-171800ZJUL2025//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY: NONE.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 90S) PREVIOUSLY LOCATED NEAR 
7.2S 91.3E IS NOW LOCATED NEAR 9.3S 90.1E, APPROXIMATELY 641 NM 
NORTHWEST OF THE COCOS ISLANDS. ANIMATED ENHANCED INFRARED (EIR) 
IMAGERY DEPICTS AN AREA OF SUSTAINED DEEP CONVECTION BUILDING NEAR THE 
LOW LEVEL CIRCULATION CENTER (LLCC). A 161631Z ASCAT-B REVEALS A 
DEFINED STRENGTHENING SYMMETRIC CIRCULATION WITH 34 KNOT WINDS WRAPPING 
AROUND THE AREA OF CONVECTION. ENVIRONMENTAL ANALYSIS INDICATES A 
FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH GOOD POLEWARD OUTFLOW ALOFT, 
WARM (30-31C) SEA SURFACE TEMPERATURE, AND 15-20 KNOTS VWS. GLOBAL 
MODELS AGREE ON STRONG DEVELOPMENT AND A SOUTHWESTWARD TRACK OVER THE 
NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 
23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1009 MB. 
THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS REMAINS HIGH.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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