According to Environment Canada conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain.
Hazards: Strong winds gusting up to 110 km/h Torrential downpours with 50 mm falling within an hour Nickel to golf ball sized hail Risk of a tornado
Timing: through to this evening.
Discussion: The main threats will be strong winds, torrential downpours and hail.
There is also a risk of a tornado today, especially towards the Ottawa River Valley.
Large hail can damage property and cause injury. 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.
Water-related activities may be unsafe due to violent and sudden gusts of wind over bodies of water.
In the event of a tornado, or if a tornado warning is issued for the area, they recommended people take the following actions:
Go indoors to a room on the lowest floor, away from outside walls and windows, such as a basement, bathroom, stairwell or interior closet.
Leave mobile homes, vehicles, tents, trailers and other temporary or free-standing shelter, and move to a strong building if you can.
As a last resort, lie in a low spot and protect your head from flying debris.
