ABIO10 PGTW 262100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/262100Z-271800ZNOV2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/261952ZNOV2025//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/262051ZNOV2025//
NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL CYCLONE 
FORMATION ALERT.//
RMKS/
1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA):
   A. TROPICAL CYCLONE SUMMARY:
      (1) AT 26NOV25 1800Z, TROPICAL CYCLONE 04B (SENYAR) WAS LOCATED 
NEAR 3.6N 99.9E, APPROXIMATELY 894 NM SOUTHWEST OF DA NANG, VIETNAM, 
AND HAD TRACKED EASTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 30 KNOTS GUSTING TO 40 
KNOTS. SEE REF A (WTIO31 PGTW 262100) FOR FURTHER DETAILS.
      (2) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 96B) PREVIOUSLY LOCATED NEAR 
6.3N 81.5E IS NOW LOCATED NEAR 6.2N 81.4E, APPROXIMATELY 100 NM EAST-
SOUTHEAST OF COLOMBO, SIR LANKA. ANIMATED ENHANCED INFRARED SATELLITE 
IMAGERY (EIR) AND A 261611Z ASCAT METOP-B PASS DEPICT ELEVATED WIND 
SPEEDS APPEARING ON THE WESTERN PERIPHERY OF THE QUICKLY CONSOLIDATING 
LOW LEVEL CIRCULATION CENTER (LLCC) WITH BROKEN CONVECTION AND 
FORMATIVE BANDING AGAINST THE SOUTHWESTERN PERIPHERY.
ENVIRONMENTAL ANALYSIS REVEALS FAVORABLE CONDITIONS FOR DEVELOPMENT 
WITH WARM (28-29 C) SEA SURFACE TEMPERATURES (SST) AROUND THE 
COASTLINE OF SRI LANKA, GOOD RADIAL OUTFLOW, AND LOW TO MODERATE (15-
20 KTS) SOUTH-SOUTHEASTERLY VERTICAL WIND SHEAR PRESENT. GLOBAL 
DETERMINISTIC AND ENSEMBLE MODELS ARE IN GOOD AGREEMENT DEPICTING 96B 
TO CONTINUE ON A GENERALLY NORTHWARD TRACK OVER SRI LANKA AND TOWARDS 
THE BAY OF BENGAL. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 
TO 27 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 
MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL 
CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF B 
(WTIO21 PGTW 262100) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   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: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA. 1.B. (1) TO 
HIGH.//
NNNN