Preliminary summer analysis: more promising in Quebec

Strong signals

A long -term overview is a major challenge. According to the first signs anticipated by the models, a staging of the main players would be favorable to a promising summer for Quebec. Two elements play in our favor. The beautiful province would benefit from a ridge that promotes the rise in heat. Such an atmospheric context would mean that the beginning of summer would be marked by temperatures above normal.

“The pieces of the puzzle are put in place,” says Réjean Ouimet, meteorologist. Some of the great players are starting to get importance. The first indications point to a hot summer. The heart of hot air will be articulated around a crest in the southwest of the United States with potential swelling to Quebec. »»

The meeting with summer

Two important steps are to be remembered with regard to the beginning of summer. At first, maximums of 20 ° C or better which settle in a sustainable way around mid-May in southern Quebec. Second, the summer heat that allows swimming: during the second week of June. According to meteorologists and their preliminary analysis, all of this would happen in time this year.

The two ridges

In summer, an anticyclone that reaches Quebec is synonymous with good hot weather. To do this, the polar cold withdrew in the first place and leaves the field free to a ridge. The heat can thus go back to our latitudes from two sources: the Southwest and the Southeast. In the first case, a heat dome can be built in the United States and traveling northeast. Another scenario provides for the merger of the Bermuda anticyclone. These two situations are ideal for promoting a heat supply.

“The heat brakes this spring will fade, add Réjean Ouimet. The vortex with a recurring hollow must absolutely retreat towards the north and even better derive to the west. This will open the door to a zonal air flow or even better: from the southwest. It is the brand of heat waves. »»

Punctual summer

Overall, Quebec would experience a summer in time if we consider the average dates. The real heat installed in a sustainable way require the removal of the polar cold and the absence of the high anticyclone at the level of Greenland. To appreciate the summer as a whole, the beautiful province will have to count on the strength and proximity of the heat dome in the southwest of the United States which would be synonymous with a hot season.