Environment Canada has issued a thunderstorm watch for Toronto and the GTA calling for potential torrential downpours and strong winds.
“Thunderstorms have developed along a cold front that will sweep through the area today,” the national weather agency says.
It also says the thunderstorms, which are expected to arrive Wednesday afternoon, could bring around 50 millimetres of rain to fall within an hour, with wind gusts up to 90 km/h.
The anticipated rainfall is the first one since last week’s storms that brought severe flooding to the GTA.
Nearly 98 millimetres of rain fell in Toronto on July 16, making it the fifth wettest day in the city’s history.
The heavy rain caused flooding on the Don Valley Parkway and Gardiner Expressway, as well as subway stations including Union Station. Power was also knocked out for thousands of homes and businesses.