ABPW10 PGTW 161300 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS REISSUED/161300Z-170600ZSEP2024// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/160151ZSEP2024// REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/151951ZSEP2024// REF/C/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/161251ZSEP2024// NARR/REF A IS A TROPICAL CYCLONE FINAL WARNING. REFS B AND C ARE TROPICAL CYCLONE FORMATION ALERTS.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 16SEP24 0000Z, TYPHOON 14W (BEBINCA) WAS LOCATED NEAR 30.9N 121.6E, APPROXIMATELY 19 NM SOUTH- SOUTHEAST OF SHANGHAI, CHINA, AND HAD TRACKED WEST-NORTHWESTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 65 KNOTS GUSTING TO 80 KNOTS. SEE REF A (WTPN31 PGTW 160300) FOR THE FINAL WARNING ON THIS SYSTEM. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 97W) PREVIOUSLY LOCATED NEAR 13.7N 144.2E IS NOW LOCATED NEAR 14.8N 142.9E, APPROXIMATELY 133 NM NORTHWEST OF GUAM. THE SYSTEM IS CURRENTLY CLASSIFIED AS A MONSOON DEPRESSION, GENERALLY CHARACTERIZED AS A LARGE CYCLONIC CIRCULATION, GREATER THAN 600NM DIAMETER, WITH EXTENSIVE GALE-FORCE WINDS OVER THE EASTERN PERIPHERY AND A WEAK CORE OF LIGHT WINDS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY (MSI) DEPICTS AN EXPOSED, DISORGANIZED CENTER, WITH A WELL-DEFINED MESOVORTEX ROTATING WESTWARD ALONG THE NORTHERN QUADRANT. ADDITIONALLY, MSI SHOWS VERY SPARSE CONVECTION NEAR THE CORE, WITH EXTENSIVE CONVECTIVE BANDING DISPLACED ALONG THE SOUTHERN AND EASTERN PERIPHERIES. A 160008Z ASCAT-B IMAGE REVEALS A 120 NM CORE OF WEAK WINDS (0-10 KNOTS), AN EXTENSIVE SWATH OF 25-35 KNOT WINDS ALONG THE EASTERN PERIPHERY, AND A RADIUS OF MAXIMUM WINDS OF ABOUT 180 NM. A 160008Z MHS 89 GHZ MICROWAVE IMAGE DEPICTS A VERY BROAD, EXPOSED, WEAK CORE, WITH A WIDE SWATH OF FRAGMENTED CONVECTIVE BANDING (ASSOCIATED DIRECTLY WITH THE GALE- FORCE WIND REGION). UPPER-LEVEL ANALYSIS INDICATES STRONG DIFFLUENCE ALONG A DIVERGENT ASYMPTOTE, WHICH IS LOCATED DIRECTLY OVER THE CONVECTIVE BANDING. VERTICAL WIND SHEAR VARIES SIGNIFICANTLY ACROSS THE MONSOON DEPRESSION, WITH LOW VWS IN THE CORE BUT HIGH VWS ASSOCIATED WITH THE CONVECTIVE BANDING. GLOBAL MODELS INDICATE A NORTHWESTWARD TRACK, WITH SLOW CONSOLIDATION OF THE WIND FIELD WHILE MAINTAINING GALE-FORCE WINDS ALONG THE EASTERN AND NORTHERN PERIPHERIES. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 30 TO 35 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS HIGH. SEE REF B (WTPN21 PGTW 152000) FOR FURTHER DETAILS. (2) THE AREA OF CONVECTION (INVEST 98W) PREVIOUSLY LOCATED NEAR 17.3N 124.6E IS NOW LOCATED NEAR 17.5N 123.8E, APPROXIMATELY 239 NM NORTHEAST OF MANILA, PHILIPPINES. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS A PARTIALLY-EXPOSED LOW-LEVEL CIRCULATION, WITH PERSISTENT DEEP CONVECTION OVER THE WESTERN QUADRANT. UPPER-LEVEL ANALYSIS INDICATES A MARGINAL ENVIRONMENT, WITH LOW TO MODERATE (15 TO 20 KNOTS) VERTICAL WIND SHEAR AND WEAK DIFFLUENCE ALOFT. GLOBAL MODELS INDICATE A WESTWARD TRACK OVER LUZON, WITH STEADY STRENGTHENING IN THE ONE TO TWO DAY TIMEFRAME AS THE SYSTEM REORGANIZES OVER THE SOUTH CHINA SEA. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF C (WTPN22 PGTW 161300) FOR FURTHER DETAILS. (3) 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. 3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA. 1.B.(2) TO HIGH.// NNNN