ABIO10 PGTW 312100
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN 
REISSUED/312100ZDEC2025-011800ZJAN2026//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/311351ZDEC2025//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/311951ZDEC2025//
NARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS.//
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:
      (1) AT 31DEC25 1200Z, TROPICAL CYCLONE 09S (GRANT) WAS LOCATED 
NEAR 15.7S 69.6E, APPROXIMATELY 543 NM SOUTH-SOUTHWEST OF DIEGO GARCIA, 
AND HAD TRACKED WESTWARD AT 23 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 100 KNOTS GUSTING TO 125 
KNOTS. SEE REF A (WTXS32 PGTW 311500) FOR FURTHER DETAILS.
      (2) AT 31DEC25 1800Z, TROPICAL CYCLONE 11S (ELEVEN) WAS LOCATED 
NEAR 11.2S 106.3E, APPROXIMATELY 555 NM EAST OF THE COCOS ISLANDS, AND 
HAD TRACKED SOUTHEASTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS. 
SEE REF B (WTXS31 PGTW 312100) FOR FURTHER DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 90S) PREVIOUSLY LOCATED NEAR 
10.5S 105.7E IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. SEE PARA. 
2.A.(2) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO WARNING 
STATUS.//
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