There will be a Moderate risk for severe weather this afternoon and evening, mainly in the Niagara Region. Additional risks will exist for Prince Edward County, as well as areas to the west of Niagara.
Rain will be continuing through the day today, with the potential for severe thunderstorms to develop. The most severe storms are expected to be in the Niagara Region, and there will be a large risk for severe weather stateside. Areas to the west of Niagara may see severe thunderstorms, as well as Prince Edward County.
The main threats today will include the risk for tornadoes, flash flooding due to heavy rainfall, wind gusts up to 100 km/h, and hail 2 to 3 cm in diameter. Flooding concerns are prominent due to much of the region having already received rainfall.
The rest of the region may see scattered severe thunderstorms due to a slightly favourable environment.
Moderate Risk
Locations: Fort Erie, Niagara Falls, Port Colborne and St. Catharines.
Threats: Heavy rainfall of 40 to 60 mm or greater with the risk of flash flooding, 1 or 2 tornadoes, wind gusts up to 100 km/h, and hail 2 to 3 cm in diameter.
Elevated Risk
Locations: Brantford, Hamilton, Prince Edward County and Simcoe.
Threats: Heavy rainfall of 40 to 60 mm or greater with the risk of flash flooding, the risk for an isolated tornado, wind gusts up to 90 km/h, and hail 1 to 2 cm in diameter.
Low Risk
Locations: Belleville, Brockville, Burlington, Chatham, Cornwall, Grand Bend, Guelph, Kingston, Kitchener, Leamington, London, Mississauga, Oshawa, Pelee Island, Sarnia, St. Thomas, Stratford, Toronto, Wallaceburg, Windsor and Woodstock.
Threats: Heavy rainfall of 40 to 60 mm or greater with the risk of flash flooding and wind gusts up to 80 km/h. There is a low risk for an isolated tornado.
Very Low Risk
Locations: Algonquin Provincial Park, Bancroft, Barrie, Barry's Bay, Bayfield Inlet, Burk's Falls, Collingwood, Franktown, Goderich, Haliburton, Hanover, Hawkesbury, Huntsville, Kincardine, Listowel, Midland, Orangeville, Orillia, Ottawa, Owen Sound, Parry Sound, Pemborke, Peterborough, Peterborough, Renfrew, Southampton, Tobermory and Vaughan.
Threats: Heavy rainfall of 20 to 40 mm or greater with the risk of local flooding and wind gusts up to 80 km/h.
A Tornado Watch and Severe Thunderstorm Watch are now in effect from Environment Canada.
