ABIO10 PGTW 172100 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN REISSUED/172100Z-181800ZJAN2023// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/171951ZJAN2023// 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 17JAN23 1800Z, TROPICAL CYCLONE 08S (EIGHT) WAS LOCATED NEAR 14.1S 58.0E, APPROXIMATELY 362 NM NORTH OF PORT LOUIS, MAURITIUS, AND HAD TRACKED WEST-SOUTHWESTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 35 KNOTS GUSTING TO 45 KNOTS. SEE REF A (WTXS31 PGTW 172100) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 90S) PREVIOUSLY LOCATED NEAR 8.7S 54.6E IS NOW LOCATED NEAR 8.5S 54.8E, APPROXIMATELY 727 NM NORTH- NORTHWEST OF MAURITIUS. ANIMATED MULTI-SPECTRAL IMAGERY AND A 171428Z SSMIS 37GHZ MICROWAVE PASS DEPICT DEEP FLARING CONVECTION ON THE WESTERN SEMICIRCLE WRAPPING INTO A PARTIALLY OBSCURED LLCC. A RECENT SCATTEROMETRY PASS SHOWS 25-30KT WINDS ON THE WESTERN FLANK. ENVIRONMENTAL ANALYSIS REVEALS UNFAVORABLE CONDITIONS FOR FURTHER INTENSIFICATION DUE TO STRONG (30-40KT) VWS, OFFSET BY WARM (29-30C) SEA SURFACE TEMPERATURES, AND GOOD POLEWARD AND EQUATORWARD OUTFLOW. GLOBAL MODELS ARE IN AGREEMENT THAT TC08S WILL RETROGRADE TO THE EAST AS IT INTERACTS WITH TROPICAL CYCLONE 08S OVER THE NEXT FEW DAYS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1008 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) THE AREA OF CONVECTION (INVEST 96S) PREVIOUSLY LOCATED NEAR 13.6S 60.0E IS NOW THE SUBJECT OF A TROPICAL CYCLONE WARNING. SEE PARA. 2.A.(1) FOR FURTHER DETAILS. (3) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(2) TO WARNING STATUS.// NNNN