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A resident uses a snowblower to clear a driveway in Lefroy, Ont., on Friday.Christopher Drost/The Canadian Press

Wintry weather continues to hammer southern Ontario, with snowfall warnings in place for much of the region this weekend.

The warnings issued by Environment Canada stretch from Sault Ste. Marie, east to Chalk River, and south to Walpole Island on Lake St. Clair.

They call for between five and 20 centimetres of snowfall, while a special weather statement for Toronto says snow will be accompanied by strong winds.

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Traffic moves slowly along Highway 400 at the Line 6 overpass in Innisfil, Ont., during a winter storm on Friday.Christopher Drost/The Canadian Press

For areas under snowfall warnings, the weather agency says travel will likely be challenging and visibility could be reduced at times.

Environment Canada says multiple rounds of snow last week already dumped just shy of 60 centimetres off Lake Huron, with areas west of Kitchener seeing closer to 30 centimetres.

The snow is expected to change to flurries for most areas later Sunday.