The weather across Canada is currently being influenced by a heat dome situated over Ontario and Quebec, affecting the temperature patterns in other regions. Environment Canada meteorologist Julien Pellerin explains that the intense heat experienced in the eastern parts of the country is leading to below-normal temperatures elsewhere. The presence of this high-pressure system is particularly felt in the Prairies, which are encountering cooler air as a consequence. This weather phenomenon is characterized by scorching temperatures reaching as high as 30°C, especially in southern Ontario and parts of Quebec, impacting areas ranging from Southwestern Ontario to Northern Quebec.
The heat wave is anticipated to peak on Monday and Tuesday, with humidex values making it feel considerably hotter, between 40 to 45 degrees Celsius in certain areas. However, Pellerin notes that this extreme weather pattern is not expected to persist; by the middle of the week, a shift in air mass will likely bring more moderate temperatures across Canada. As the heat dome stabilizes in Ontario and Quebec, the rest of the country experiences atypical weather fluctuations, leading to unusual precipitation patterns and temperatures.
British Columbia has seen significant rainfall as a result of the heat dome’s influence. Environment Canada has issued warnings for heavy showers and wet snow, particularly at higher elevations. Meanwhile, southern Alberta has faced heavy rain, leading to swift developments in local waterways. The Calgary Fire Department has cautioned residents against engaging in water activities on the Bow River due to the increased water flow, even though flooding has not been reported.
In Saskatchewan, additional concerns are arising following the rainfall in Alberta. The Water Security Agency has stated that the subsequent runoff could increase water levels in the South Saskatchewan River, forcing Alberta to manage reservoir water levels proactively. As a precautionary measure, significant rises are expected at Lake Diefenbaker, a popular recreation area, due to the anticipated influx of water from Alberta.
Recognizing the severe heat are additional reminders from Environment Canada urging residents in Ontario and Quebec to stay hydrated and aware of heat exhaustion signs. Residents are advised to be conscious of their physical comfort and to take breaks in air-conditioned areas as necessary. Pellerin emphasizes the importance of self-awareness in these extreme conditions, reminding individuals to heed their bodies’ signals to avoid overheating.
Schools in Quebec are also being advised to remain vigilant amid the rising temperatures, with directives issued from education officials regarding potential safety measures. This includes the possibility of closing schools to protect students and staff from the hazardous weather conditions. Such initiatives reflect a comprehensive approach to managing the impact of the ongoing heat wave and associated weather anomalies across Canada.
