ABIO10 PGTW 311800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN/311800ZDEC2022-011800ZJAN2023// 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: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: (1) THE AREA OF CONVECTION (REMNANTS 05S) PREVIOUSLY LOCATED NEAR 32.2S 68.6E IS NOW LOCATED NEAR 33.4S 69.0E, APPROXIMATELY 997 NM SOUTHEAST OF PORT LOUIS, MAURITIUS. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL STORM, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MID-LATITUDE CYCLONE FEATURES. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A FULLY EXPOSED BROAD LOW-LEVEL CIRCULATION (LLC) WITH ISOLATED CONVECTION TO THE SOUTH-SOUTHEAST. RECENT SCATTEROMETRY DATA REVEALS AN ASYMMETRIC WIND FIELD WITH 30-35 KNOT WINDS IN THE SOUTHERN PERIPHERY OF THE LLC. THE SYSTEM IS CURRENTLY LOCATED UNDER HIGH (25-35 KNOT) NORTHWESTERLY-WESTERLY VWS. GLOBAL MODELS ARE IN AGREEMENT THAT REMNANTS 05S WILL TRACK SOUTHEASTWARD AS IT UNDERGOES ETT OVER THE NEXT 24-36 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 30 TO 35 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. FOR HAZARDS AND WARNINGS, REFERENCE THE FLEET WEATHER CENTER SAN DIEGO HIGH WINDS AND SEAS PRODUCT OR REFER TO LOCAL WMO DESIGNATED FORECAST AUTHORITY. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) NO OTHER SUBTROPICAL SYSTEMS.// NNNN