ABPW10 PGTW 300130 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND /SOUTH PACIFIC OCEANS REISSUED/300130ZJUN2021-300600ZJUN2021// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/300052ZJUN2021/ NARR/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: (1) THE AREA OF CONVECTION (INVEST 95W) PREVIOUSLY LOCATED NEAR 19.8N 140.1E IS NOW LOCATED NEAR 19.6N 139.3E, APPROXIMATELY 752 NM SOUTHEAST OF KADENA AB. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A 291919Z SSMI 89GHZ MICROWAVE IMAGE DEPICT A CONSOLIDATING LOW LEVEL CIRCULATION (LLC) WITH FLARING CONVECTION SHEARED TO THE SOUTHWEST. FURTHERMORE, A TIMELY 292247Z ASCAT-A IMAGE SHOWS A COMPACT AREA OF 20KT WINDS ALONG THE EASTERN SEMI- CIRCLE OF THE LLC. UPPER LEVEL ANALYSIS INDICATES THAT 95W IS IN A FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH LOW TO MODERATE WIND SHEAR (15-20KTS), GOOD EQUATORIAL OUTFLOW, AND WARM (30-31C) SEA SURFACE TEMPERATURES (SST). GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 95W WILL CONTINUE TO TRACK WEST-SOUTHWESTWARD ALONG A SUBTROPICAL RIDGE TO THE EAST AS IT STEADILY INTENSIFIES BEFORE TURNING TO A MORE WEST-NORTHWESTWARD TRACK OVER THE NEXT 24-36 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1007 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF A (WTPN22 PGTW 300100) FOR FURTHER DETAILS. (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. 3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 1.B.(1) TO HIGH.// NNNN