A large part of southern Ontario is under a severe thunderstorm watch, with strong winds, hail and heavy rain possible on Wednesday.
Environment Canada issued a watch for areas including the Greater Toronto-Hamilton Area, Kitchener, Guelph, and the Niagara Region.
“Thunderstorms will develop along a cold front that will move through the province this afternoon,” the weather agency said Wednesday.
It said wind gusts of up to 90 km/h are possible with up to toonie-sized hail.
The northern GTA, through Barrie and Cottage Country, extending east to areas west of Ottawa, are also under a severe thunderstorm watch.
For those areas, the watch reads slightly different, with 100 km/h wind gusts possible, along with toonie-sized hail and even a risk of a tornado.
The threat for those areas lasts through the afternoon into the evening, Environment Canada said.
“The main threat will be strong winds and hail,” it said.
“However, a tornado will also be possible.”