Snow squall threat looms over Ontario, Quebec

Tuesday, December 10, 2013, 12:01 PM -

ONTARIO

Low to zero visibilities and hazardous driving conditions are expected to continue across parts of Ontario and Quebec through Wednesday.

"Cold westerly winds over Lake Huron and Georgian Bay are generating flurries and snow squalls," says Environment Canada in their statement Tuesday morning. "Snowfall amounts of 15 cm per 12 hours are possible in the heaviest snow squalls coming onshore between Midland and Parry Sound."

The risk for snow squalls extends into areas including Huron - Perth, Hanover, Orillia and Owen Sound.

"5 to 10 cm of snow per 12 hours is forecast until Wednesday when the squalls are expected to intensify and locally higher amounts will be possible," EC adds.

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QUEBEC

"A vigorous cold front will sweep the province of Quebec this morning, which will be favourable to the development of snow squalls on its way," says EC in the warning for Quebec early Tuesday.

Behind it, a cold and unstable air mass will move into all the regions.

Colder air over the relatively warmer water of the St. Lawrence Estuary will be favourable to the development of snow squalls along the north shore of the Gaspe Peninsula and over the Anticosti Island, EC adds.

Up to 15 cm of snow fell across parts of southern Quebec on Monday, resulting in dangerous driving conditions.