Environment Canada has warnings in place from Windsor, Ont., to Newfoundland's southern coast, including blowing snow and blizzard warnings.
Rain and wet snow, as well as the possibility of freezing rain, were expected to hit across Southwestern Ontario and Niagara. Snow there will total 15 to 25 centimetres by Wednesday night in some areas.
Areas in Southern Ontario under a winter storm warning include:- Brockville – Leeds and Grenville.
- Cornwall – Morrisburg.
- Dunnville – Caledonia – Haldimand.
- Kingston – Prince Edward.
- Simcoe – Delhi – Norfolk.
- Stirling – Tweed – South Frontenac.
- Windsor – Essex – Chatham-Kent.
The City of Hamilton was expecting up to 15 cm of snow and was under a blowing wind warning, with winds gusting up to 60 km/h expected in the Hamilton area.
Much of southeastern Quebec is expected to experience the winter weather as well. Environment Canada warned of:- Up to 40 cm of snow along the Appalachians.
- Between 15-20 cm of snow over the Upper St. Lawrence and over the Gaspé Peninsula overnight.
- Strong winds in areas experiencing snowfall as well as several areas along the middle and Lower St. Lawrence.
In Nova Scotia, up to 40 millimetres of rain was expected to fall Thursday morning, with the highest amounts through the Annapolis Valley, according to Environment Canada. A winter storm warning was also in place for Colchester County North and Cumberland County North and Cobequid Pass.
Much of New Brunswick was also under a winter storm warning, while Kent County, Kouchibouguac National Park and Miramichi and area were under a blizzard warning.
March Break travel delays
By 3 a.m. ET, more than a dozen flights were cancelled at Billy Bishop Toronto City Airport. A handful of early morning flights at Toronto's Pearson International Airport were also cancelled.
Airport officials tweeted a warning that expected snow could lead to March Break travel delays. The airport urged travellers to check their flight status.
Air Canada issued travel alerts at several airports across Ontario, Quebec, Prince Edward Island and New Brunswick due to the forecast.
West Jet issued a travel advisory for Eastern Canada, namely southern Ontario and Quebec. The company warned passengers to check their flight status before heading to an airport.