Southern Ontario bracing for back-to-back storms, snow events declared

Commuters on Highway 8 in Kitchener on Dec. 10, 2025. (Hannah Schmidt/CTV News)

Get out those shovels and snowblowers! Southern Ontario is getting not one – but two – big blasts of winter this week.

The first storm swept through Tuesday afternoon, while the second is set to start overnight.

Environment Canada issued a yellow snowfall warning, saying an Alberta clipper would bring approximately 10 to 20 cm of the white stuff.

“The snow is expected to transition to showers or flurries from southwest to northeast through the day Wednesday,” the agency’s alert read.

All areas between Pickering and Montreal were included in the advisory.

Meantime, an expected change in weather conditions prompted a second yellow warning for communities between Sarnia and the GTA.

“Patchy freezing drizzle has developed over some locations,” Environment Canada said. “Icy surfaces will likely form and could be difficult to detect.”

Drivers were urged to take it slow on the roads. The agency said blowing snow could reduce visibility, while icy patches may be difficult to see. Pedestrians were also advised to take precautions.

Environment Canada said lake effect snow squalls were possible southeast of Lake Huron from Wednesday night into Thursday, with some areas getting even more snow accumulation.

Snow events

Some drivers will need to find somewhere else to park as Kitchener and the City of Waterloo have issued snow events.

Drivers have until 2 a.m. on Wednesday to removed parked cars from Kitchener streets to allow plow operators to clear snow-covered streets.

Overnight parking exemptions are suspended during a snow event. The ban will remain in place for 24 hours.

Any vehicles found on the street may be ticketed and towed if they interfere with clean-up efforts.

Meanwhile, the snow event in Waterloo will kick in at noon on Wednesday. All vehicles must be removed from the streets or they could be ticketed or towed.

The City of Cambridge has also declared a snow event. Drivers there need to have all vehicles off the street by 7 a.m. Wednesday. Vehicles left on the street may be ticketed or towed.