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Environment Canada warns of heat and thunderstorms in southern Ontario

ONTARIO, JUL 15 – A strong cold front combined with high humidity will cause severe thunderstorms and flash flooding risks, with wind gusts up to 90 km/h and hail the size of nickels, Environment Canada said.

  • Environment Canada has issued heat warnings for several areas in southern Ontario, including Windsor, Sarnia, and Chatham-Kent, with temperatures around 30 degrees Celsius, feeling like 35 to 40 degrees Celsius due to humidity.
  • Severe thunderstorm warnings have been issued for Ottawa and surrounding areas, with storms moving east at 40 kilometres per hour.
  • Rainfall of up to 50 millimetres, wind gusts of 90 kilometres per hour, and nickel-sized hail are predicted, along with possible utility outages and flash floods.
  • Toronto police reported water pooling on the Don Valley Parkway, causing lane restrictions on Sunday morning amid the heat and thunderstorm watches.
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The humidex can reach 40 Sundays in Quebec. A watch of severe thunderstorms and a low risk of tornado are also in effect.

·Montreal, Canada
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St Catharines StandardSt Catharines Standard
+9 Reposted by 9 other sources
Lean Left

Severe thunderstorm warnings in effect in eastern Ontario

TORONTO - Thunderstorms are working their way through southeastern Ontario as a heat wave continues to blanket parts of the province.

·Welland, Canada
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Winnipeg Free PressWinnipeg Free Press
+4 Reposted by 4 other sources
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Environment Canada warns of heat and thunderstorms in southern Ontario

Breaking News, Sports, Manitoba, Canada

·Winnipeg, Canada
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Winnipeg Free Press broke the news in Winnipeg, Canada on Sunday, July 13, 2025.
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