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| #981651 (Received by flhurricane at: 7:39 AM 09.Sep.2019) TCDAT5 Post-Tropical Cyclone Dorian Discussion Number 64 NWS National Hurricane Center Miami FL AL052019 1100 PM AST Sun Sep 08 2019 The center of Post-Tropical Cyclone Dorian is now located northeast of Newfoundland over the Labrador Sea where sea-surface temperatures are less than 10 deg C. No significant convection exists within 120 nmi of the center and, thus, Dorian has become fully extratropical. Therefore, this is the last advisory on this system. The post-tropical cyclone is now moving east-northeastward or 060/21 kt. This general motion should continue through Tuesday or until the cyclone is absorbed by a larger extratropical low. The NOAA Ocean Prediction Center (OPC) once again provided guidance on the intensity and wind radii forecasts, and initial 12-ft seas radii. The post-tropical cyclone is forecast to gradually weaken through Tuesday or until it is absorbed by a larger low. Key Messages: 1. Dorian will continue to cause some impacts across portions Atlantic Canada into early Monday morning. Storm surge impacts will gradually subside over portions of the northeastern Gulf of St. Lawrence and western Newfoundland. Tropical-storm-force wind gusts will continue over portions of southeastern Newfoundland into early Monday but should end by late Monday morning. Refer to information from the Canadian Hurricane Centre for more information on these hazards. FORECAST POSITIONS AND MAX WINDS INIT 09/0300Z 52.1N 53.4W 50 KT 60 MPH...POST-TROP/EXTRATROP 12H 09/1200Z 53.6N 48.8W 45 KT 50 MPH...POST-TROP/EXTRATROP 24H 10/0000Z 55.1N 41.5W 40 KT 45 MPH...POST-TROP/EXTRATROP 36H 10/1200Z 56.6N 31.6W 35 KT 40 MPH...POST-TROP/EXTRATROP 48H 11/0000Z...DISSIPATED $$ Forecaster Stewart |
