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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scene Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Weather warnings in Canada are issued by Environment and Climate Change Canada when hazardous conditions—such as blizzards, freezing rain, extreme heat, or severe thunderstorms—are expected. These alerts are region-specific and updated in real time, so checking Canada weather warnings before travel is essential.
What types of weather warnings are issued in Canada?
Environment Canada issues several warning categories: winter storm warnings (heavy snow, blowing snow, freezing rain), rainfall and snowfall warnings, extreme cold and heat warnings, tornado and severe thunderstorm watches/warnings, and special air quality statements. Each warning has a clear threshold—for example, a snowfall warning is triggered when 15 centimetres or more is expected within 12 hours. For travellers, winter weather warnings are most common from November through March across most provinces.
Where do weather warnings change most frequently?
Southern Ontario and the Greater Toronto Area see frequent shifts between rain, freezing rain, and snow, making Ontario weather warnings today a daily check for commuters. The Prairies, especially Manitoba, experience rapid temperature drops and blizzard conditions; manitoba weather warnings today are often driven by wind chill and blowing snow. Northern Ontario and the territories face prolonged extreme cold warnings, while coastal British Columbia deals with atmospheric river events triggering rainfall warnings.
How do I check weather warnings for my exact location?
Use the Environment Canada mobile app or website, entering your city or postal code. The weather warning page at Canada Scene also links to the official feed for each province.
Are weather warnings the same as watches?
No. A watch means conditions are possible within 24–48 hours; a warning means the hazardous weather is imminent or occurring. Always act on warnings immediately, especially for travel plans.
Do weather warnings affect highway travel in Ontario?
Yes. Ontario weather warnings today often trigger road closures on Highways 401, 400, and 11. Check the Ontario 511 map before driving, especially during southern Ontario weather warning today events.