
ADVERTISEMENT Ottawa Watch Ottawa weather update: July 12 A look at the weather forecast in Ottawa for Saturday, July 12, 2025.
A look at the weather forecast in Ottawa for Saturday, July 12, 2025.
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CBC
38 minutes ago
- CBC
Severe thunderstorm watch in effect for Ottawa-Gatineau
Environment Canada (EC) has issued a severe thunderstorm watch for most of Eastern Ontario and parts of Western Quebec, including the Ottawa-Gatineau region. The watch was issued Sunday morning to warn that hazardous thunderstorms may develop in the afternoon and early evening. Toonie-sized hail, heavy downpours and wind gusts up to 100 km/h are possible, EC wrote. In Ontario, the watch stretches south to Cornwall and Kingston, and west to parts of Renfrew County. In Quebec, the watch includes Gatineau and communities to the north-east. It comes as much of the region is also experiencing a lengthy heat warning which began late Friday morning. The agency advises 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. EC 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.

CTV News
40 minutes ago
- CTV News
‘When thunder roars, go indoors': Toronto under severe thunderstorm watch
An early spring storm is bringing high winds and heavy rain to parts of Ontario as Environment Canada warns of significant snowfall in other parts of the province. A pedestrian walks on a rainy day in Toronto on Friday, June 18, 2021. THE CANADIAN PRESS/Nathan Denette Toronto is under a 'severe thunderstorm watch' as Environment Canada warns of potentially dangerous weather, including torrential rain, hail and damaging wind gusts. 'Slow moving showers and thunderstorms are expected to bring heavy rain into this afternoon,' the agency said late Sunday morning. 'Hail and strong wind gusts are also possible.' Officials say hazards could include rainfall amounts of up to 50 mm in some areas, hail up to the size of a nickel, and strong winds capable of damaging trees, property, or even overturning vehicles. 'Lightning kills and injures Canadians every year,' Environment Canada cautioned. 'When thunder roars, go indoors!' The storms are expected to continue with the risk of flash flooding and reduced visibility. Emergency Management Ontario is advising residents to take cover immediately if threatening weather approaches and to avoid driving through flooded roadways. Police warn of 'water pooling' on DVP Toronto police also issued a warning just after 10:30 a.m. about "water pooling" on the Don Valley Parkway near the Gardiner Expressway. Drivers were urged to use caution and consider alternate routes, as lane restrictions were in effect. This marks the second concurrent weather warning for the city. Environment Canada's heat warning — the third since late June — also remains active and is expected to continue through Thursday. Daytime highs are forecast between 29 C and 32 C with humidex values approaching 40. The hottest day is expected to be Tuesday officials warn, with cooler temperatures unlikely to arrive until late in the week. This is a developing news story, more details to come...


CTV News
an hour ago
- CTV News
Montreal under severe thunderstorm watch, heat warning on Sunday
A boy cools down during a heat wave in Montreal. Environment Canada said a heat wave is set to hit Quebec on June 18, 2024. (Graham Hughes, The Canadian Press) As the hot and sticky weather lingers over Montreal, the city is also under a severe thunderstorm to cap off the weekend. Environment and Climate Change Canada (ECCC) issued the weather alert at 9:18 a.m. with a warning about conditions that are favourable for the development of 'dangerous thunderstorms capable of producing very strong wind gusts, large hail and heavy rain.' The weather agency says there is also a tornado risk, and that heavy rain can cause flash flooding in some areas. It's not just the stormy weather to watch out for — ECCC has also put Montreal under a heat warning until Sunday evening. The forecast is calling for a high of 30 C on Sunday but the alert says humidex values could reach 40. ECCC says people should watch for signs of heat stroke, drink water often, and close blinds or shades at home. The low will drop to 22 C on Sunday night.