OttawaEnvironment Canada issued a severe thunderstorm warning for Ottawa and other eastern Ontario communities, and a severe thunderstorm watch for the rest of eastern Ontario and parts of western Quebec.Toonie-sized hail possible, Environment Canada warnedCBC News · Posted: Jul 13, 2025 11:44 AM EDT | Last Updated: 1 hour agoEnvironment Canada has issued a severe thunderstorm watch in eastern Ontario and western Quebec, and a warning for some eastern Ontario communities. (The Canadian Press/Justin Tang)Environment Canada has lifted a severe thunderstorm warning for Ottawa and other eastern Ontario communities.The warning, issued Sunday around 2 p.m., was due to a line of thunderstorms moving northwest from Thomasburg, Ont., to Norway Bay, Que., the weather agency wrote.Communities like Arnprior, Kaladar, Perth and Ottawa were covered by the warning in Ontario, as well as Gatineau and western Quebec communities including Wakefield and Shawville.The weather agency said there may be 90 km/h winds, up to 50 millimetres of rain and nickel-sized hail. Reduced visibility, utility outages and flash flooding are likely, according to Environment Canada.The warnings came as much of the region is also experiencing a lengthy heat warning which began late Friday morning.The agency advised the public to stay indoors and take cover in a basement where possible during threatening weather, and notes strong winds can damage trees or buildings and overturn vehicles.Environment Canada issues a severe thunderstorm watch when conditions are favourable for a storm to develop. A warning is issued when there is evidence that a thunderstorm is imminent or occurring that will produce damaging hail, wind or rain.
Severe thunderstorm warning lifted for Ottawa
