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| #1157553 (Received by flhurricane at: 10:37 PM 15.Oct.2023) TCDAT4 Post-Tropical Cyclone Sean Discussion Number 21 NWS National Hurricane Center Miami FL AL192023 1100 PM AST Sun Oct 15 2023 A few showers and thunderstorms continue to pulse in association with Sean, but the activity can no longer be considered organized or persistent. Dvorak final-T numbers from TAFB and SAB have either been T1.0 or Too Weak to Classify for the past 18 hours, and as a result, Sean has degenerated into a remnant low. Maximum winds are estimated to be 25 kt and are expected to gradually weaken during the next day or so. The remnant low is forecast to turn westward overnight, and global models indicate that the circulation should open up into a trough by 36 hours, if not sooner. The remnant trough is likely to pass near or north of the northern Leeward Islands around midweek. This is the last advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php FORECAST POSITIONS AND MAX WINDS INIT 16/0300Z 18.2N 49.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 12H 16/1200Z 18.4N 51.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 17/0000Z 18.7N 53.8W 20 KT 25 MPH...POST-TROP/REMNT LOW 36H 17/1200Z...DISSIPATED $$ Forecaster Berg |
