ABIO10 PGTW 161800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/161800Z- 171800ZFEB2023// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/161351ZFEB2023// AMPN/REF A IS 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 16FEB23 1200Z, TROPICAL CYCLONE 11S (FREDDY) WAS LOCATED NEAR 15.0S 79.5E, APPROXIMATELY 628 NM SOUTHEAST OF DIEGO GARCIA, AND HAD TRACKED WESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 125 KNOTS GUSTING TO 150 KNOTS. SEE REF A (WTXS31 PGTW 161500) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN