Severe thunderstorm risk persists in Ontario after 2026’s first tornado warning
Severe storm potential continues for southern Ontario on Wednesday, following 2026’s first tornado warning
Overnight thunderstorms triggered Canada's first tornado warning and red alert of the year in the Windsor area.
DON’T MISS: Summer Sneak Peek: El Niño may split Canada’s summer in two
By Wednesday afternoon and evening, southwestern Ontario could see another round of severe thunderstorms, with a risk of heavy downpours and large hail. A low to slight chance of a rotating storm also exists.
Weather Highlights:
Severe thunderstorms forecast Wednesday afternoon, starting near Windsor and Sarnia by 2 p.m., and reaching Hamilton and the Greater Toronto Area (GTA) after 4 p.m.
Risks include large hail and 30-50 mm of rain due to elevated thunderstorm energy from warm weather
Another round of strong thunderstorms expected Thursday morning in Windsor and Thursday afternoon in the GTA
Another round of severe thunderstorms Wednesday: Risk of heavy rain, large hail
Following Tuesday's overnight storms, another round of severe thunderstorms is forecast Wednesday afternoon, driven by a cold front moving through southern Ontario.
RELATED: Santa’s Village ‘under water’ amid flooding in Bracebridge, Ont.
Thunderstorms are expected to develop near Windsor and Sarnia around 2 p.m., moving into London, Hamilton, and Niagara after 4 p.m.
The environment could produce severe storms with heavy downpours and a hail risk. There is a low to slight chance of a rotating storm near Windsor.
Another system will bring rain with embedded thunderstorms to Windsor, Sarnia, and London early in the morning on Thursday, moving into GTA and Cottage Country by the afternoon.
Heavy rainfall is expected Thursday afternoon along Lake Huron shores and north of Barrie, areas already impacted by flooding earlier this week. Totals of 30-50+ mm are anticipated.
Rain will spread into eastern Ontario by Thursday evening.
Feels like March? Thunderstorm risk eases this weekend in southern Ontario, but much cooler weather moves in
Expect calmer weather for Friday and Saturday, with a mix of sun and cloud. Highs near 20°C are possible in Windsor, Toronto, and Ottawa. However, a cooldown begins over the weekend, and snow is likely in northern Ontario as a cold system arrives from the Prairies.
Early next week is forecast to resemble late March, with changeable temperatures throughout the final week of April. Near-seasonal to cooler-than-seasonal conditions are anticipated to persist into early May.
WATCH: Early-morning thunderstorm wake-up call in southern Ontario Tuesday
Stay tuned to The Weather Network for the latest forecast updates across southern Ontario.