Severe thunderstorm watch in effect for:
- Ottawa Valley
- Montréal Island area
Conditions are favourable for the development of severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain until this evening.
Boaters may be caught off guard by strong gusts on smaller bodies of water.
Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Heavy downpours can cause flash floods and water pooling on roads. Lightning kills and injures Canadians every year.