Much of northwestern Ontario is under a winter storm watch as of Monday morning, with between 15 and 30 centimetres of snowfall expected. Here's what we know about the upcoming weather event.

A major winter storm bringing up to 60 cm of snow is expected to continue all day Wednesday. The heavy snow has closed Highway 11 in both directions between Kapuskasing and Cochrane and Hearst and Longlac.

Parts of southern Ontario are expected to get a winter wallop in the coming days. While northern Ontario faces a major winter storm Wednesday, Environment Canada has also issued snow squall watches for areas east of Lake Huron.

Significant weather system in northeastern and northwestern Ontario may blow into central Quebec north of Montreal. Heavy snowfall is projected with travel advisory.

A weather system that is moving across the country is bringing winter conditions to Ontario and Quebec starting Wednesday and into Thursday, with heavy snow and high winds expected.

Severe weather has closed highways in Ontario on Wednesday. Environment and Climate Change Canada issued a winter storm warning yesterday for parts of northwest Ontario. The storm was expected to arrive Tuesday night and end Thursday in Thunder Bay,

A meteorologist is warning Ontarians to prepare, as an extreme atmospheric warming event will be bringing severely cold weather next month.

Up to two feet of snow is set to to hit the Upper Midwest and 52 million are under wind alerts from the Plains to the Great Lakes and into the Appalachians, including in major cities like Chicago and Detroit. For the areas under these alerts, gusts are forecast to be as high as 60 mph.

Winter storm warnings are in effect across northern Ontario as major storm with heavy and blowing snow is expected. Travel is not recommended