ABIO10 PGTW 201800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/201800Z- 211800ZFEB2023// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/201351ZFEB2023// 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 20FEB23 1200Z, TROPICAL CYCLONE 11S (FREDDY) WAS LOCATED NEAR 18.9S 57.0E, APPROXIMATELY 74 NM NORTH-NORTHWEST OF PORT LOUIS, MAURITIUS, AND HAD TRACKED WEST- SOUTHWESTWARD AT 18 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 120 KNOTS GUSTING TO 145 KNOTS. SEE REF A (WTXS31 PGTW 201500) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN