ABPW10 PGTW 091130 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND /SOUTH PACIFIC OCEANS/REISSUED/091130Z-100600ZOCT2020// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/090151ZOCT2020// REF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/091051ZOCT2020// NARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 09OCT20 0600Z, TYPHOON 16W (CHAN-HOM) WAS LOCATED NEAR 30.7N 133.6E, APPROXIMATELY 413 NM SOUTHWEST OF YOKOSUKA, JAPAN, AND HAD TRACKED NORTH -NORTHEASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 70 KNOTS GUSTING TO 85 KNOTS. SEE REF A (WTPN31 PGTW 090900) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA ON CONVECTION (INVEST 92W) PREVIOUSLY LOCATED NEAR 13.1N 117.4E IS NOW LOCATED NEAR 13.1N 115.6E, APPROXIMATELY 466 NM EAST-SOUTHEAST OF DANANG, VIETNAM. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS FLARING CONVECTION WITH LOW LEVEL BANDING WRAPPING INTO A PARTIALLY OBSCURED LOW LEVEL CIRCULATION CENTER (LLCC). THE FORMATIVE BANDS ARE ALSO PRESENT IN A 090525Z ATMS 183GHZ IMAGE WHICH FURTHER CONSTRAINS THE CURRENT POSITION. INVEST 92W IS CURRENTLY TRACKING THROUGH AN ENVIRONMENT THAT IS MARGINALLY FAVORABLE FOR FURTHER DEVELOPMENT WITH MODERATE (15-25 KTS) VERTICAL WIND SHEAR (VWS) OFFSET BY WARM (28-30 CELSIUS) SEA SURFACE TEMPERATURES (SST) AND ROBUST EQUATORWARD OUTFLOW ALOFT. NUMERICAL MODELS ARE IN FAIR AGREEMENT THAT INVEST 92W WILL CONTINUE TO TRACK GENERALLY WESTWARD OVER THE NEXT 24 HOURS AND CONTINUE TO CONSOLIDATE AS THE VWS WEAKENS BELOW 15 KTS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 15 TO 20 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 B (WTPN21 PGTW 091100) 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