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| #1108709 (Received by flhurricane at: 10:51 AM 24.Sep.2022) TCDAT2 Post-Tropical Cyclone Fiona Discussion Number 41 NWS National Hurricane Center Miami FL AL072022 1100 AM AST Sat Sep 24 2022 Fiona continues to produce hurricane-force winds, heavy rains, storm surge, and rough marine conditions across Atlantic Canada and the surrounding waters. Surface observations suggest that the minimum pressure has been rising, and is now estimated to be about 945 mb, which is still extraordinarily low. The maximum winds of the storm are decreasing and are estimated to be near 70 kt. Fiona is now an occluded low, and it has slowed down. The initial motion is estimated to be northward at 22 kt. A slower northward motion is forecast during the next few days, taking the center of the system across the Gulf of St. Lawrence through tonight, across Labrador early Sunday, and into the Labrador Sea by Sunday night. The NHC track forecast is just a touch to the west of the previous one. Winds are expected to fall below hurricane strength later today, but the cyclone is still forecast to be a potent low for the next day or so while it continues to affect Atlantic Canada. NHC will continue to issue forecasts for Fiona until gale-force winds end along the Atlantic Canada coastline. Key Messages: 1. Fiona is forecast to continue to affect portions of Atlantic Canada during the next day or so, and significant impacts from high winds, storm surge, and heavy rainfall are expected. Hurricane and Tropical Storm Warnings are in effect for much of Atlantic Canada. 2. Heavy rains from Fiona are expected to continue to impact portions of Nova Scotia, Prince Edward Island, and western Newfoundland today, persisting across eastern Quebec and Labrador into Sunday. This rainfall is expected to produce flooding, some of which could be significant. 3. Large swells generated by Fiona are expected to cause life-threatening surf and rip current conditions along the coast of the northeast United States, Bermuda, and Atlantic Canada during the next couple of days. FORECAST POSITIONS AND MAX WINDS INIT 24/1500Z 47.9N 61.3W 70 KT 80 MPH...POST-TROP/EXTRATROP 12H 25/0000Z 50.0N 60.5W 55 KT 65 MPH...POST-TROP/EXTRATROP 24H 25/1200Z 54.1N 59.1W 45 KT 50 MPH...POST-TROP/EXTRATROP 36H 26/0000Z 58.1N 58.7W 40 KT 45 MPH...POST-TROP/EXTRATROP 48H 26/1200Z 61.0N 59.0W 35 KT 40 MPH...POST-TROP/EXTRATROP 60H 27/0000Z 63.3N 58.0W 35 KT 40 MPH...POST-TROP/EXTRATROP 72H 27/1200Z 65.3N 56.4W 35 KT 40 MPH...POST-TROP/EXTRATROP 96H 28/1200Z...DISSIPATED $$ Forecaster Cangialosi |
