Published on June 2, 2024 at 12:47 p.m.
It’s a summer classic: a heat wave that ends with thunderstorms. We could see a first version this week. Forecast.
A remarkable arrival
Meteorological summer quickly shows its colors. Sun and heat are expected for the next few days. The mercury should touch the 30° mark at the start of the week in the south of the province. But summer isn’t all sun and heat. It’s also storm season, and summer could very well offer us this other classic from its repertoire a few days after its arrival.
Hot but dry
The weather will be particularly dry at the start of this heat wave. The feelings will also be very close to the temperatures. Despite a maximum close to 30° on Monday and Tuesday, the humidex factor will be very modest, and the feeling should not exceed 31 or 32. But a system full of humidity should rear its ugly head from Tuesday. The dry air should thus give way to the more humid air. This won’t be enough to cause extreme heat, but enough to provide an essential element for thunderstorm formation.
The necessary tools
Heat and humidity are two factors that give a low pressure system ammunition for thunderstorm formation. From late Tuesday afternoon, we could see the formation of a few isolated storms. Energy will build up during this day, as well as Wednesday. It is in the second half of the day on Wednesday that the storms could appear with more conviction. Abitibi-Témiscamingue, Outaouais, Laurentides, Montérégie and the Montreal region are the regions most at risk on Wednesday. The Quebec region and Beauce could also be affected. And as Boum Desjardins said, the storm can last a long time. Storm cells could continue to form Thursday or even Friday.
Fire season
We will need to closely monitor the forest fire situation. For the moment, the danger is high in the Saint-Laurent valley, very high in other sectors such as Haute-Mauricie, Hautes-Laurentides and Abitibi, and extreme further north, in the lake region. Mistassini. But the dry heat should increase the fire risk a notch at the start of the week. Sopfeu predicts that on Tuesday, the risks will be very high to extreme in most regions of Quebec. The only sectors less at risk would be Bas-Saint-Laurent, Beauce and the Côte-Nord. Lightning could ignite some fires starting Wednesday.
With the collaboration of Patrick Duplessis, meteorologist
SEE ALSO: Tornado destroys gas station
#Canada
