ABPW10 PGTW 081530 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND /SOUTH PACIFIC OCEANS REISSUED/081530Z-090600ZFEB2021// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/081451ZFEB2021// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// 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: (1) THE AREA OF CONVECTION (INVEST 92P) PREVIOUSLY LOCATED NEAR 15.1S 179.1E IS NOW LOCATED NEAR 16.9S 178.9E, APPROXIMATELY 145 NM EAST-NORTHEAST OF NADI, FIJI. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY DEPICTS FLARING, DEEP CONVECTION SURROUNDING A BROAD AREA OF LOW LEVEL CIRCULATION. A 080958Z ASCAT-B PASS REVEALS THAT THE LOW LEVEL CIRCULATION IS ELONGATED ALONG THE NORTH- SOUTH AXIS AND CONTAINS 30-35 KTS WINDS IN THE CONVERGENT FLOW ALONG THE EASTERN PERIPHERY, ALTHOUGH THE WINDS NEAR THE CENTER OF THE ELONGATED CIRCULATION REMAIN RELATIVELY WEAK (10-15 KTS). ENVIRONMENTAL ANALYSIS DEPICTS A MARGINALLY FAVORABLE ENVIRONMENT WITH MODERATE UPPER LEVEL OUTFLOW ALOFT AND WARM (28-29 CELSIUS) SEA SURFACE TEMPERATURES OFFSET SLIGHTLY BY MODERATE (15-20 KTS) VERTICAL WIND SHEAR ALONG THE SOUTHERN PERIPHERY OF THE SYSTEM. NUMERICAL MODEL SOLUTIONS ARE CONVERGING ON A SOUTHWESTWARD TRACK WITH SUBSEQUENT CONSOLIDATION INTO A TROPICAL CYCLONE WITHIN THE NEXT 24-48 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 27 TO 32 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 999 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF A (WTPS21 PGTW 081500) FOR FURTHER DETAILS. (2) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO HIGH.// NNNN