Seeing heavy thunderstorms Currently in practice in many parts of northwestern Quebec. The Abitibi-Témiscamingue and Chibougamau sectors are particularly prone to lightning.
Much of the north bank of the St. Lawrence River is today threatened by low risk of severe thunderstorms. Areas west, south and central Quebec, such as Abitibi, Laurentians, Lanaudiere, Mauricie or Montreal Island, will hear thunder.
Without the actual structure, most cells would have to break down individually. This type of storm is generally less powerful than highly structured hurricanes (it often crosses the cold front). Warm and very humid air with heavy rain is more prevalent in the Montreal metropolitan area and the Outlays region.
The afternoons and evenings are especially hectic. From Abitibi-Témiscamingue to Saguenay-Lac-Saint-Jean, cells can form, which can lead to the risk of thunderstorms and strong winds. However, the risk is reduced in hours: the heat loss from the sunset and the loss of feathers close to the surface reduces the instability.
At the height of the storm, there will be separate thundershowers in Montreal by this evening as the air will be full of moisture. Strong winds may blow. The risk of aquaplaning cannot be ruled out, so it is better to be careful if you have to go on the road.
Lightning moves east
Lightning can play its part in the southern and central parts of the province on nights from Sunday to Monday. This instability will have the parallel effect of expelling intense heat. Humidity decreases overnight from Sunday to Monday, bringing mercury back to seasonal normal.
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