The heat dome that hangs over Ontario and Quebec is responsible for part of the unusual weather conditions that strike other regions of the country.
Julien Pellerin, a meteorologist at Environnement Canada, says that scorching temperatures on the east of the continent lead to temperatures below normal in other regions.
He indicates that the meadows thus record more cold temperatures than normal and undergo violent thunderstorms which can be linked to the extreme heat observed elsewhere.
If a heat dome is formed in a sector, we can expect colder air in another sector, and this is what the meadows are currently experiencing.
The high pressure system comes from the United States and does not move quickly. It therefore brings intense heat and wet air in southern Ontario and southern Quebec, and it will be installed there for the next three days
explains Julien Pellerin.
He specifies that areas of dangerous heat levels extend from southwest Ontario to North Bay, Sudbury and Timmins, while in Quebec, the highest temperatures are expected from Montreal to Shawinigan and north to Abitibi.
Mr. Pellerin expects Ontario and Quebec to reach their diurnal peaks on Monday and Tuesday, with temperatures exceeding 30 ° C, and that humidx gives a feeling of 40 to 45, depending on the region.
It will not last very long
he underlines. By the end of Tuesday and Wednesday, we will witness a transition from the air mass throughout Canada, especially in Quebec and Ontario.
What is humidex?
During a heat wave or a heat wave, humidx – also called wet index or wet factor – translates into a single value the heat felt by the majority of people. The higher the humidx index, the more people have an impression of discomfort and discomfort.
In winter, it’s theindex or the wind which describes the intensity of the cold perceived by people.
Source: Quebec Office of the French Language
Precautions to take
Heat levels in Ontario and Quebec have prompted Environment Canada to remind the population to stay hydrated by drinking water even thirsty, monitoring the first signs of exhaustion due to heat and not to be overworked.
Be careful: you know yourself. Take breaks. Make sure you have an air-conditioned place where you are resting.
In Quebec, students are invited to remain vigilant in the face of rising temperatures.
The Ministry of Education of Quebec is asking the management of school service centers (CSS) to Set up all preventive measures […] to ensure everyone’s safety
.
If you have to close the schools, do it!
even indicated Minister Bernard Drainville.
The effects elsewhere in the country
The effects of the heat dome reserve surprises in other parts of the country.
Environment Canada warned that certain regions of British Columbia may experience strong showers on Saturday and, on certain mountain roads, a risk of wet snow.
In addition, the opinions of heavy rains in force in southern Alberta were all raised on Sunday, but the region received large precipitation.
Calgary residents were warned of avoiding the Bow river. The fire service has advised the nautical navigation and any other nautical activity due to a water flow higher than normal.
The Bow River at the height of Bowness Park, in the northwest of Calgary. (Archives photo)
Photo: Radio-Canada / and McGarvey
The Saskatchewan Water Safety Agency warned that the rains in Alberta could also lead to an increase in the flow of the Saskatchewan South river, between the Albertaine border and Lake Diefenbaker.
This agency indicated that Alberta began to empty the water from the tanks last week to make room for additional runoff.
It expected the level of Lake Diefenbaker, a large reservoir located north-west of Regina and a popular leisure area, rises more than a meter this week due to the meteorological system.
