ABIO10 PGTW 281800
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN 
OCEAN/281800Z-291800ZMAR2025//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/281351ZMAR2025//
REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/281352ZMAR2025//
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 28MAR25 1200Z, TROPICAL CYCLONE 27S (COURTNEY) WAS LOCATED 
NEAR 17.2S 94.6E, APPROXIMATELY 328 NM SOUTH-SOUTHWEST OF THE COCOS 
ISLANDS, AND HAD TRACKED WEST- SOUTHWESTWARD AT 11 KNOTS OVER THE PAST 
SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 110 KNOTS 
GUSTING TO 135 KNOTS. SEE REF A (WTXS31 PGTW 281500 AMD) FOR FURTHER 
DETAILS.
      (2) AT 28MAR25 1200Z, TROPICAL CYCLONE 28S (DIANNE) WAS LOCATED 
NEAR 15.6S 123.8E, APPROXIMATELY 166 NM NORTHEAST OF BROOME, AUSTRALIA, 
AND HAD TRACKED SOUTHWARD AT 08 KNOTS OVER THE PAST SIX HOURS. MAXIMUM 
SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS GUSTING TO 50 KNOTS. 
SEE REF B (WTXS32 PGTW 281500) FOR FURTHER DETAILS.
      (3) NO OTHER TROPICAL CYCLONES.
   B. TROPICAL DISTURBANCE SUMMARY: NONE.
   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//
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