ABIO10 PGTW 281800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/281800Z-
291800ZDEC2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/281351ZDEC2025//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/281352ZDEC2025//
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 28DEC25 1200Z, TROPICAL CYCLONE 09S (GRANT) WAS LOCATED 
NEAR 13.1S 84.6E, APPROXIMATELY 800 NM EAST-SOUTHEAST OF DIEGO GARCIA, 
AND HAD TRACKED WEST-SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. 
MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 75 KNOTS GUSTING TO 90 
KNOTS. SEE REF A (WTXS32 PGTW 281500) FOR FURTHER DETAILS.
      (2) AT 28DEC25 1200Z, TROPICAL CYCLONE 10S (TEN) WAS LOCATED NEAR 
13.6S 119.4E, APPROXIMATELY 304 NM NORTH-NORTHWEST OF BROOME, AUSTRALIA, 
AND HAD TRACKED SOUTHWARD AT 05 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS GUSTING TO 50 KNOTS. 
SEE REF B (WTXS31 PGTW 281500) FOR FURTHER DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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