Major snowstorm causing travel chaos in southern Ontario

"This is a great day to take it easy and not be out there [on the road]," OPP Sgt. Kerry Smith said in a social media post.

Southern Ontario, including the Greater Toronto Area (GTA), has seen its first significant snowstorm of the season, with reported snow totals ranging from 15 to over 20 cm. The snowfall has been intense at times.

GO Train hits snow plow

At 1:56 p.m., Go Train services announced significant delays after the Lakeshore East train collided with a snow plow in Toronto's Scarborough Golf Club road and Kingston road area.

No injuries have been reported.

In addition to train delays, the incident forced the closure of Scarborough Golf Club road between Dale Ave and Confederation Drive, Toronto Police Services tells The Weather Network in an email.

If you encounter a snowplow, please remember that it’s not only unsafe but also illegal to attempt to pass it. Doing so can lead to hefty fines.

DVP shut down amid multiple crashes

Thursday morning, Toronto police announced that the Don Valley Parkway was closed due to dangerous winter driving conditions and multiple collisions. The heavily-used roadway remained closed for several hours, slowly re-opening again after the lunch hour.

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But treacherous driving conditions continued through the day.

In a Thursday afternoon post on social media, OPP Sgt. Kerry Smith, reporting from Hwy. 401 at the 400 in Toronto said cars were "pinballing" off of each other.

As of noon Thursday, the OPP had recorded 200 collisions and 125 cars stuck in snow banks over the past 24 hours.

"This is a great day to take it easy and not be out there [on the road]," OPP Sgt. Kerry Smith said in the social media post.

A section ofighway 400 at Finch was closed for several hours Thursday as well, following several crashes.

Jeremy Cohn - car collisions

Several accidents, including this one, were reported on Highway 400 at Finch Thursday afternoon. (Jonathan Cohn)

Snow dwindles by afternoon

The snowfall, which caused several school and service closures across southern Ontario, dissipated through the afternoon.

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The bitter wind chill that sat around -20 this morning is easing a bit, but it's still frigid, with afternoon wind chills sitting around the -11 mark.

Southern Ontario unofficial snow totals Thursday morning - Jan. 15, 2026

If you plan to travel, be sure to check current road conditions before heading out, as several areas may be significantly impacted by the storm. Travellers should also be aware that many flights have been delayed or cancelled at Toronto Pearson Airport and Ottawa Macdonald-Cartier International Airport due to the weather.

Stay safe and warm, and keep an eye on updates as the situation develops throughout the day. Below is a look at some photos and videos shared on social media and with The Weather Network.

Jeremy Cohn - car collisionsMark Robinson: Guelph, Ontario, Snowfall, heavy snow. Winter storm. Plow. Jan. 15, 2026

Guelph, Ont. (The Weather Network)

Paul Campbell/Free to use: Heavy snow, snowstorm, car under snow. London, Ont., Jan 15, 2025

London, Ont. (The Weather Network)

Lina Truong/free to use: Heavy snow, road covered in snowfall, winter storm. Toronto, Ontario. Jan. 15, 2025

Toronto, Ont. (The Weather Network)

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Kim MacDonald: Heavy snow, snowstorm in Hamilton, Ontario. Jan. 15, 2025

Hamilton, Ont. (The Weather Network)