Published on June 29, 2025 at 7:00 p.m.
An explosive return. Forecasts.
In summer, days without thunderstorms are not so frequent. It will be hard to forget the tumult last week: on June 23, violent cells broke out around the province. In Quebec, the festivities on the plains of Abraham had to be canceled. Ultimately, the fourth tornado of the season occurred in Saint-Raphaël, in Bellechasse. If the last days have been quieter, in addition to Saturday, the start of the week will be agitated.
West in sight
On Monday, the arrival of a new system will play spoilsports in Quebec. However, the most affected regions would be those in the West. He will enter the afternoon and Abitibi-Témiscamingue will be the first assigned. Powerful thunderstorm cells could form and pour significant amounts of rain. These thunderstorms could also produce strong gusts and large harshs.
The probabilities of seeing violent thunderstorms are in a corridor connecting the Georgian bay and Abitibi, via the Pontiac and Témiscamingue. The latter would potentially be the target of Supercellules. On the outskirts, the risk will be smaller, but still present. On Monday, the risk of thunderstorms will extend to Bas-Saint-Laurent, via the Saguenay-Lac-Saint-Jean and Chibougamau.
Energy in the air
The criteria for the formation of violent thunderstorms will be met: there will be enough energy in the air and a good dose of humidity will be present. Recall that temperatures could exceed thirty degrees Celsius on Monday, especially in Outaouais and in the Pontiac, with a feeling just under 40. Enough to feed thunderstorm cells.
On Tuesday, it will be the turn of the southern and center regions to undergo the wrath of the system. Rivers could overflow due to the generous amounts of rain expected in places. The weather conditions could give thousands of Quebecers who will move.
