ABIO10 PGTW 021800 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN /OCEAN/021800Z-031800ZJAN2021// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/021351ZJAN2021// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// 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: (1) AT 02JAN21 1200Z, TROPICAL CYCLONE 08S (DANILO) WAS LOCATED NEAR 10.8S 72.5E, APPROXIMATELY 222 NM SOUTH OF DIEGO GARCIA, AND HAD TRACKED EAST-SOUTHEASTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 45 KNOTS GUSTING TO 55 KNOTS. SEE REF A (WTXS31 PGTW 021500) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 93S) PREVIOUSLY LOCATED NEAR 14.7S 80.8E IS NOW LOCATED NEAR 14.2S 77.4E, APPROXIMATELY 498 NM SOUTHEAST OF DIEGO GARCIA. INVEST 93S IS CURRENTLY 350 NM EAST- SOUTHEAST OF TC 08S AND HAS BEGUN FUJIWARA INTERACTION. ANIMATED ENHANCED INFRARED SATELLITE IMAGERY AND A 021609Z METOP-B 89GHZ MICROWAVE IMAGE DEPICT WEAKENING CONVECTIVE BANDING AND ISOLATED FLARING CONVECTION. A 021610Z ASCAT-B PASS REVEALS A BROAD AND ELONGATED CIRCULATION OF MOSTLY 10-15KT WINDS ADJACENT TO AN EXTENSIVE REGION OF 25-30KT GRADIENT WINDS. GLOBAL MODELS ARE IN GENERAL AGREEMENT THAT INVEST 93S WILL ACCELERATE WESTWARD AND BECOME ABSORBED IN TC 08S WITHIN THE NEXT 24-36 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1001 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS DOWNGRADED TO LOW. (2) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE.// NNNN