ABIO10 PGTW 051800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN /OCEAN/051800Z-061800ZFEB2022// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/051351ZFEB2022// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/050751ZFEB2022// NARR/REFS A AND A 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 05FEB22 1200Z, TROPICAL CYCLONE 08S (BATSIRAI) WAS LOCATED NEAR 20.8S 49.4E, APPROXIMATELY 156 NM SOUTHEAST OF ANTANANARIVO, MADAGASCAR, AND HAD TRACKED WEST- SOUTHWESTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 100 KNOTS GUSTING TO 125 KNOTS. SEE REF A (WTXS31 PGTW 051500) FOR FURTHER DETAILS. (2) AT 05FEB22 0600Z, TROPICAL CYCLONE 10S (CLIFF) WAS LOCATED NEAR 19.4S 83.7E, APPROXIMATELY 985 NM SOUTHEAST OF DIEGO GARCIA, AND HAD TRACKED SOUTHWARD AT 04 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS GUSTING TO 50 KNOTS. SEE REF A (WTXS32 PGTW 050900) FOR FURTHER DETAILS. (3) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN