ABIO10 PGTW 121000 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN /REISSUED/121000Z-121800ZNOV2020// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/120921ZNOV2020// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// RMKS/ 1. NORTH INDIAN OCEAN AREA (MALAY PENINSULA WEST TO COAST OF AFRICA): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. 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: (1) THE AREA OF CONVECTION (INVEST 92S) PREVIOUSLY LOCATED NEAR 5.3S 88.8E IS NOW LOCATED NEAR 4.7S 89.0E, APPROXIMATELY 991 NM EAST OF DIEGO GARCIA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS FLARING DEEP CONVECTION AROUND A PARTIALLY EXPOSED, WELL- DEFINED LOW LEVEL CIRCULATION CENTER (LLCC) WITH ROBUST RADIAL OUTFLOW. A 120720Z AMSR2 GW1 89GHZ MICROWAVE IMAGE REVEALS FRAGMENTED DEEP CONVECTIVE BANDING WRAPPING INTO THE LLCC FROM ALL SIDES. 92S IS CURRENTLY IN A FAVORABLE ENVIRONMENT WITH EXCELLENT RADIAL OUTFLOW, LOW (10 TO 20 KNOTS) VERTICAL WIND SHEAR, AND WARM (29 TO 30 CELSIUS) SEA SURFACE TEMPERATURES. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 92S WILL TRACK WEST-SOUTHWESTWARD, INTENSIFYING TO WARNING THRESHOLD IN 12 TO 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO HIGH. SEE REF A (WTXS21 PGTW 120930) 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