ABIO10 PGTW 301800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN /OCEAN/301800Z-311800ZMAY2022// 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 (INVEST 92S) PREVIOUSLY LOCATED NEAR 16.9S 111.3E IS NOW LOCATED NEAR 18.3S 114.8E, APPROXIMATELY 240 NM NORTH OF LEARMONTH, AUSTRALIA. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL STORM, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MID-LATITUDE FEATURES. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A BROAD DISORGANIZED SYSTEM WITH A LINE OF DEEP CONVECTION SHEARED TO THE EAST. THE SYSTEM IS CURRENTLY UNDER HIGH VERTICAL WIND SHEAR DUE TO STRONG UPPER NORTHWESTERLIES OVERHEAD AND A SUBTROPICAL JET TO THE SOUTH. A 301412Z ASCAT-B IMAGE REVEALS A FRONTAL LIKE SYSTEM WITH AN ASYMMETRIC WIND FIELD AND 30-35 KNOT WINDS OVER THE EASTERN PERIPHERY. GLOBAL MODELS ARE IN AGREEMENT THAT INVEST 92S WILL GRADUALLY WEAKEN AS IT TRACKS EASTWARD INTO THE NORTHWEST COAST OF AUSTRALIA. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 30 TO 35 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. FOR HAZARDS AND WARNING, 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