ABIO10 PGTW 060400 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN /REISSUED/060400Z-061800ZMAR2021// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/051953ZMAR2021// REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/060152ZMAR2021// NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL CYCLONE FINAL 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 05MAR21 1800Z, TROPICAL CYCLONE 24S (HABANA) WAS LOCATED NEAR 16.1S 77.1E, APPROXIMATELY 604 NM SOUTH-SOUTHEAST OF DIEGO GARCIA, AND HAD TRACKED EAST- NORTHEASTWARD AT 08 KNOTS (KTS) OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 120 KNOTS GUSTING TO 145 KNOTS. SEE REF A (WTXS32 PGTW 052100) FOR FURTHER DETAILS. (2) AT 06MAR21 0000Z, TROPICAL CYCLONE 22S (MARIAN) WAS LOCATED NEAR 25.8S 95.9E, APPROXIMATELY 1018 NM WEST-SOUTHWEST OF LEARMONTH, AUSTRALIA, AND HAD TRACKED SOUTH-SOUTHEASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS. SEE REF B (WTXS31 PGTW 060300) FOR THE FINAL WARNING ON THIS SYSTEM. (3) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 91S) PREVIOUSLY LOCATED NEAR 18.1S 44.6E IS NOW LOCATED NEAR 19.4S 48.1E, APPROXIMATELY 104 NM SOUTHWEST OF TOAMASINA, MADAGASCAR. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY AND A 060255Z SSMIS 91GHZ SATELLITE IMAGE DEPICT DISORGANIZED AND FLARING CONVECTION OVER LAND WITHOUT A CLEAR LOW LEVEL CIRCULATION. HOWEVER, 91S IS POISED TO EXIT INTO THE SOUTH INDIAN OCEAN INTO A FAVORABLE ENVIRONMENT WITH EXCELLENT DUAL CHANNEL UPPER LEVEL OUTFLOW, LOW (<15KT) VERTICAL WIND SHEAR (VWS) AND WARM (28-29C) SEA SURFACE TEMPERATURES (SST). GLOBAL MODELS ARE IN GENERAL AGREEMENT THAT 91S WILL UNDERGO MINIMAL CONSOLIDATION AND INTENSIFICATION OVER THE NEXT 3 DAYS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: UPDATED WITH FINAL WARNING FOR TC 22S IN PARA 2.A.(2) AND UPDATED INFO FOR INVEST 91S IN PARA 2.B.(1).// NNNN