"ABIO10 PGTW 081800\r\nMSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//\r\nSUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN \r\nOCEAN/081800Z-091800ZJAN2026//\r\nREF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/080751ZJAN2026//\r\nREF/B/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/080951ZJAN2026//\r\nNARR/REF A IS A TROPICAL CYCLONE WARNING. REF B IS A TROPICAL CYCLONE \r\nFORMATION ALERT.//\r\nRMKS/\r\n   B. TROPICAL DISTURBANCE SUMMARY:\r\n      (1) THE AREA OF CONVECTION (INVEST 90B) PREVIOUSLY LOCATED NEAR \r\n5.2N 86.5E IS NOW LOCATED NEAR 6.4N 84.5E, APPROXIMATELY 279 NM EAST \r\nOF COLOMBO, SRI LANKA. RECENT ANIMATED ENHANCED INFRARED SATELLITE \r\nIMAGERY DEPICT A CONSOLIDATING LOW-LEVEL CIRCULATION CENTER (LLCC) \r\nOBSCURED BY PERSISTENT CONVECTION. FURTHERMORE, A 080421Z METOP-C \r\nASCAT PASS DEPICTS A PATCH OF 30KT WINDS ALONG THE WESTERN PERIPHERY \r\nAND 25KT WINDS ALONG THE NORTHERN PERIPHERY OF THE SYSTEM. THE \r\nENVIRONMENT IS FAVORABLE FOR DEVELOPMENT MOVING FORWARD, WITH A STRONG \r\nPOLEWARD OUTFLOW CHANNEL AND WARM (28-29C) SEA SURFACE TEMPERATURES. \r\nTHE MAIN HINDRANCE BEING THE MODERATE TO HIGH (20-25 KTS) VERTICAL \r\nWIND SHEAR THAT COULD LIMIT INTENSIFICATION BY TILTING THE STRUCTURE \r\nOF THE SYSTEM AND DISRUPTING DEEP CONVECTION. BOTH DETERMINISTIC AND \r\nENSEMBLE MODELS AGREE ON A NORTHWEST TRACK TOWARD SRI LANKA OVER THE \r\nNEXT 48 HOURS, WITH THE ECMWF ENSEMBLE ESPECIALLY, PREDICTING QUICKER \r\nAND MORE INTENSE DEVELOPMENT OF 90B. DETERMINISTIC MODELS REMAIN \r\nRELUCTANT TO INTENSIFY THE SYSTEM BEYOND 35 KNOTS. MAXIMUM SUSTAINED \r\nSURFACE WINDS ARE ESTIMATED AT 27 TO 32 KNOTS. MINIMUM SEA LEVEL \r\nPRESSURE IS ESTIMATED TO BE NEAR 999 MB. THE POTENTIAL FOR THE \r\nDEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS \r\nREMAINS HIGH. SEE REF B (WTIO21 PGTW 081000) FOR FURTHER DETAILS.\r\n      (2) NO OTHER SUSPECT AREAS.\r\n   C. SUBTROPICAL SYSTEM SUMMARY: NONE.\r\n   B. TROPICAL DISTURBANCE SUMMARY: NONE.\r\n   C. SUBTROPICAL SYSTEM SUMMARY: NONE.//"