ABIO10 PGTW 211800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/211800Z- 221800ZFEB2023// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/211351ZFEB2023// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// 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 21FEB23 1200Z, TROPICAL CYCLONE 11S (FREDDY) WAS LOCATED NEAR 20.7S 49.6E, APPROXIMATELY 160 NM SOUTHEAST OF ANTANANARIVO, MADAGASCAR, AND HAD TRACKED WEST-SOUTHWESTWARD AT 16 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 100 KNOTS GUSTING TO 125 KNOTS. SEE REF A (WTXS31 PGTW 211500) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN