ABIO10 PGTW 231800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/231800Z-241800ZOCT2023// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/231351ZOCT2023// REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/231352ZOCT2023// NARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS.// RMKS/ 1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA): A. TROPICAL CYCLONE SUMMARY: (1) AT 23OCT23 1200Z, TROPICAL CYCLONE 05A (TEJ) WAS LOCATED NEAR 15.3N 52.5E, APPROXIMATELY 137 NM SOUTHWEST OF SALALAH, OMAN, AND HAD TRACKED NORTHWESTWARD AT 06 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 75 KNOTS GUSTING TO 90 KNOTS. SEE REF B (WTIO31 PGTW 231500) FOR FURTHER DETAILS. (2) AT 23OCT23 1200Z, TROPICAL CYCLONE 06B (SIX) WAS LOCATED NEAR 18.4N 87.4E, APPROXIMATELY 341 NM SOUTHWEST OF CHITTAGONG, AND HAD TRACKED NORTH-NORTHEASTWARD AT 10 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 40 KNOTS GUSTING TO 50 KNOTS. SEE REF A (WTIO32 PGTW 231500) FOR FURTHER DETAILS. (3) NO OTHER TROPICAL CYCLONES. 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: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN