Strong Low to Impact Eastern Half of Canada

A strengthening area of low pressure will bring snow, rain, mixed precipitation, and strong winds to Southern Ontario, Southern Quebec, the Maritimes, and Newfoundland and Labrador.

Southern Ontario

Throughout today and tonight, we will see snow in southern Ontario. Most areas will see about 5 to 10 cm of snow. In eastern Ontario, snowfall amounts are expected to be higher with 15 to 20 cm expected.

The heaviest snow will fall north and east of Peterborough.

For areas near the GTA and the Niagara Peninsula, the snow will change to rain this evening.

There is a risk of freezing rain in eastern Ontario and along Highway 401 to Oshawa.

Wind gusts are not expected to be significant.

Southern Quebec

There are multiple snowfall warnings in effect for areas along the St. Lawrence River.

The snow will begin this evening in southwestern sections of the province. Areas along the southern shores of the St. Lawrence River will likely see minimal amounts of snow before a transition rain.

For areas under a snowfall warning, 15 to 20 cm is expected. 15 to 30 mm of rain is possible in southern areas.

Wind gusts are not expected to be significant.

Maritimes

Across northern New Brunswick, some light snow is expected on Monday afternoon before changing over to rain. Rain is expected to continue for the Maritimes until Tuesday morning.

Some snow is possible in New Brunswick, western P.E.I. and western Nova Scotia on Tuesday morning.

Generally, about 15 to 30 mm of rain is expected. However, over central and northern Nova Scotia amounts may reach 40 mm.

Wind gusts are not expected to be significant except on Cape Breton Island where winds could gust to 100 km/h overnight Monday.

Newfoundland

Special weather statements are in effect for all of Newfoundland.

Newfoundland will see heavy rain and strong wind Monday night into Tuesday. Southern sections of the Island and the west coast will see the most rain with 20 to 40 mm expected.

Elsewhere across Newfoundland, amounts of 5 to 15 mm are expected. Winds will be quite strong across Newfoundland with gusts up to 100 km/h possible.

As the low departs, snow squalls are possible on the west coast. Power outages are possible.

Labrador

There are winter storm watches in effect for Cartwright to Black Tickle, Eagle River, Postville - Makkovik, Rigolet and vicinity, and Upper Lake Melville.

Special weather statements are in effect for most other areas of Labrador.

Significant snowfall and strong winds are expected in the areas under the winter storm watch 40 cm or more and wind gusts to 100 km/h or more Monday night until Wednesday morning.

Elsewhere across central and northern Labrador snowfall amounts of 15 to 25 cm and wind gusts to 70 km/h are expected.