ABIO10 PGTW 181800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN /OCEAN/181800Z-191800ZOCT2020// 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 92A) PREVIOUSLY LOCATED NEAR 18.1N 67.7E IS NOW LOCATED NEAR 17.8N 64.5E, APPROXIMATELY 399 NM EAST-SOUTHEAST OF DUQM, OMAN. ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS A FULLY EXPOSED LOW LEVEL CIRCULATION CENTER (LLCC) WITH FLARING CONVECTION SHEARED TO THE WEST. AN 181215Z SSMIS 91GHZ SATELLITE IMAGE DEPICTS AN OVERALL LACK OF DEEP CONVECTION ASSOCIATED WITH THE SYSTEM. 92A IS IN AN ENVIRONMENT THAT IS GENERALLY UNFAVORABLE FOR DEVELOPMENT WITH WARM (30-31C) SEA SURFACE TEMPERATURES, AND MARGINAL POLEWARD OUTFLOW OFFSET BY STRONG (25-35 KT) VERTICAL WIND SHEAR. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT INVEST 92A WILL WEAKEN AS IT TRACKS SOUTHWESTWARD. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. DUE TO THE INCREASINGLY UNFAVORABLE ENVIRONMENT AND LACK OF DEVELOPMENT INDICATED BY GLOBAL MODELS, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS LOW. (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.// NNNN