ABPW10 PGTW 060600 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS/060600Z-070600ZMAR2023// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY:NONE. C. SUBTROPICAL SYSTEM SUMMARY: (1) THE AREA OF CONVECTION (INVEST 16P) PREVIOUSLY LOCATED NEAR 29.0S 171.3W IS NOW LOCATED NEAR 29.6S 169.9W, APPROXIMATELY 583 NM SOUTH-SOUTHEAST OF TONGA. THE SYSTEM IS CURRENTLY CLASSIFIED AS A SUBTROPICAL CYCLONE, GENERALLY CHARACTERIZED AS HAVING BOTH TROPICAL AND MIDLATITUDE CYCLONE FEATURES. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS A FULLY EXPOSED LLCC WITH CONVECTION SHEARED TO THE SOUTHEAST. A 060103Z AMSR2 89GHZ IMAGE SHOWS COPIOUS AMOUNTS OF DRY AIR BEING WRAPPED IN THE LLCC FROM THE NORTH-NORTHEAST. ENVIRONMENTAL CONDITIONS ARE HIGHLY UNFAVORABLE FOR TC DEVELOPMENT DUE TO HIGH (40-60KTS) VWS AND COOLER (23-24C) SSTS. GLOBAL MODELS AGREE THAT THE REMNANTS OF TC 16P WILL CONTINUE TO TRACK SOUTH-SOUTHEAST AND DECAY AS A SUBTROPICAL SYSTEM. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 57 TO 63 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 978 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (2) NO OTHER SUBTROPICAL SYSTEMS.// NNNN