ABIO10 PGTW 120630 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN /REISSUED/120630Z-121800ZOCT2020// RMKS/ 1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 91B) PREVIOUSLY LOCATED NEAR 15.3N 86.8E IS NOW LOCATED NEAR 15.9N 86.3E, APPROXIMATELY 205 NM SOUTHEAST OF VISAKHAPATNAM, INDIA. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A 120123Z SSMIS 91GHZ MICROWAVE IMAGE REVEAL A CONSOLIDATING LOW LEVEL CIRCULATION WITH FORMATIVE BANDING IN THE WESTERN PERIPHERY. UPPER-LEVEL ANALYSIS REVEALS INVEST 91B IS IN A MARGINALLY FAVORABLE ENVIRONMENT FOR DEVELOPMENT WITH DIFFLUENCE ALOFT, MODERATE (15-20KTS) VERTICAL WIND SHEAR, AND WARM (29-30C) SEA SURFACE TEMPERATURES. GLOBAL MODELS INDICATE A LIMITED NORTHWESTWARD TRACK OVER WATER WITH LANDFALL NEAR 130000Z; HOWEVER, THE SYSTEM IS EXPECTED TO STEADILY CONSOLIDATE AS IT APPROACHES THE COAST. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 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 MEDIUM. (2) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA): 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 MEDIUM.// NNNN