"ABIO10 PGTW 311800\r\nMSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//\r\nSUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN \r\nOCEAN/311800ZJAN2025-011800ZFEB2025//\r\nREF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/311351ZJAN2025//\r\nREF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/310752ZJAN2025//\r\nNARR/REFS A AND B ARE TROPICAL CYCLONE WARNINGS.//\r\nRMKS/\r\n   B. TROPICAL DISTURBANCE SUMMARY: NONE.\r\n   C. SUBTROPICAL SYSTEM SUMMARY: NONE.\r\n   B. TROPICAL DISTURBANCE SUMMARY:\r\n      (1) THE AREA OF CONVECTION (INVEST 99S) PREVIOUSLY LOCATED NEAR \r\n14.6S 105.7E IS NOW LOCATED NEAR 14.7S 105.4E, APPROXIMATELY 519 NM \r\nSOUTHEAST OF COCOS ISLANDS. ANIMATED MULTISPECTRAL SATELLITE IMAGERY \r\n(MSI) DEPICTS AN AREA OF LOW-LEVEL ROTATION WITH FLARING CONVECTION \r\nBEGINNING TO FORM JUST NORTH OF THE CENTER. A 311453Z ASCAT METOP-C \r\n25KM PARTIAL PASS SHOWS 15-20 KNOT NORTH-WESTERLY WINDS ALONG THE 12S \r\nLATITUDE THAT ARE HELPING 99S GAIN MORE MOMENTUM. ENVIRONMENTAL \r\nANALYSIS INDICATES THAT INVEST 99S IS IN A FAVORABLE ENVIRONMENT FOR \r\nFURTHER DEVELOPMENT DUE TO WARM (29-30C) SEA SURFACE TEMPERATURES, \r\nGOOD POLEWARD OUTFLOW ALOFT, AND IS CURRENTLY IN AN AREA OF LOW TO \r\nMODERATE (15 TO 20 KNOTS) VERTICAL WIND SHEAR. GLOBAL MODELS ARE IN \r\nAGREEMENT THAT INVEST 99S WILL CONTINUE TO CONSOLIDATE AND TAKE A \r\nSOUTHWESTWARD TRACK OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE \r\nWINDS ARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS \r\nESTIMATED TO BE NEAR 1000 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A \r\nSIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS REMAINS MEDIUM.\r\n      (2) THE AREA OF CONVECTION (INVEST 90S) PREVIOUSLY LOCATED NEAR \r\n12.5S 120.0E IS NOW LOCATED NEAR 13.4S 120.5E, APPROXIMATELY 290 NM \r\nNORTH-NORTHWEST OF BROOME, AUSTRALIA. ANIMATED MULTISPECTRAL SATELLITE \r\nIMAGERY (MSI) DEPICTS AN ELONGATED LLCC EMBEDDED WITHIN PERSISTENT \r\nDEEP CONVECTION OVERTOP. A STRONG BELT OF WESTERLY FLOW (20-25 KNOTS) \r\nALONG THE NORTHERN PERIPHERY OF THE CIRCULATION WILL CONTINUE TO HELP \r\nINVEST 90S GAIN INTENSITY OVER THE NEXT 24 HOURS.  ENVIRONMENTAL \r\nANALYSIS INDICATES THAT INVEST 90S IS IN A FAVORABLE ENVIRONMENT FOR \r\nFURTHER DEVELOPMENT DUE TO VERY WARM (30-31C) SEA SURFACE \r\nTEMPERATURES, MODERATE DUAL CHANNEL OUTFLOW ALOFT, AND LOW TO MODERATE \r\n(15 TO 20 KNOTS) VERTICAL WIND SHEAR. GLOBAL MODELS ARE IN GOOD \r\nAGREEMENT THAT INVEST 90S WILL QUICKLY CONSOLIDATE AND TRACK \r\nSOUTHWESTWARD OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS \r\nARE ESTIMATED AT 23 TO 28 KNOTS. MINIMUM SEA LEVEL PRESSURE IS \r\nESTIMATED TO BE NEAR 1001 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A \r\nSIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO \r\nMEDIUM.\r\n      (3) NO OTHER SUSPECT AREAS.\r\n   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//"