The low pressure system should make its entry on Thursday, and risks stretching its visit until Saturday. Areas of western and southern Quebec are first on the list, and could be affected during the day Thursday. It will be the turn of the center of the province on Friday, before reaching the tip of the Gaspé and the North Shore on Saturday.
This low is likely to pump moisture from the southern United States. Result: the quantity of water available in the clouds is particularly important. Everything indicates that the precipitation will be very abundant, and some areas could get 50 mm of water – or even more. North of Sept-Îles could get more than 75 mm, according to current forecasts.
The exact path of the system is still uncertain, and the most affected regions could vary over the next few days depending on the behavior of the depression.
Good gusts are also possible: peaks of up to 70 km/h could blow in southern and central Quebec. As usual, eastern Quebec could be entitled to stronger winds, and gusts of 80 km/h are possible.
A first autumn storm
With the onset of the colder weather that comes with the onset of fall, the stage is set for the birth of beefy systems: fall storms. The latter are often synonymous with violent gusts and heavy rains, and the damage can be significant.
The present disturbance therefore looks like an autumn storm. However, its intensity should oscillate between medium and strong, depending on the sectors. Property damage is possible, as is flooding. Power outages cannot be ruled out either.
On average, this type of depression enters the equation around mid-September.