ABPW10 PGTW 080600 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS/080600Z-090600ZAPR2023// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 90W) PREVIOUSLY LOCATED NEAR 6.3N 140.7E IS NOW LOCATED NEAR 8.2N 138.8E, APPROXIMATELY 91 NM SOUTH- SOUTHEAST OF YAP. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) AND A 080403Z ATMS 88.2 GHZ MICROWAVE IMAGE DEPICT FLARING CONVECTION OVER THE STILL POORLY ORGANIZED AND BROAD LOW LEVEL CIRCULATION (LLC). THE RECENT YAP SOUNDING SHOWS A DRY AND STABLE ENVIRONMENT WHILE THE SURFACE OBSERVATIONS INDICATE LIGHT AND VARIABLE WINDS WITH A FLAT PRESSURE TENDENCY OVER THE LAST 24 HOURS. ENVIRONMENTAL ANALYSIS REVEALS A MARGINAL ENVIRONMENT WITH MODERATE POLEWARD OUTFLOW AND MODERATE (20KTS) VERTICAL WIND SHEAR OFFSET BY FAVORABLE SSTS (30-31C). GLOBAL MODELS ARE IN AGREEMENT THAT 90W WILL SLOWLY DEVELOP WITH A WEST-NORTHWESTWARD TRACK OVER THE NEXT 48 HOURS AND EVENTUALLY CONSOLIDATE AROUND TAU 72. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1004 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (2) NO OTHER SUSPECT AREAS. 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: NONE.// NNNN