Messy, snowy weather hits Ontario and Quebec, fog contributes to outages.

Sunday, March 15, 2015, 7:17 AM - Winter is back for eastern Ontario and Quebec, if only temporarily.

A clipper joined forces with a system from the United States, moving slowly through Quebec and Ontario before targeting the Atlantic provinces.

Parts of Quebec are in for as much as 20 cm of snow, while eastern Ontario has less snow, but more freezing rain in store.

In southern Ontario, hundreds of homes are still in the dark after dense fogs caused outages.

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Toronto Hydro linked more than a thousand outages in North York, including York University, to the weather on its Twitter feed. By Sunday morning, that number was down to 500 from a high of 5,000.

Montreal and Quebec

• Sunday: After a Saturday with plenty of snow and strong gusts, snow tapers off for the rest of the province on Sunday morning. Montreal and surrounding areas won't see the snow disappear until the afternoon. 
• Totals: Montreal saw between 2 to 4 cm of snow by Saturday morning before the snow switched to rain. By the end of the storm, about 5 additional centimetres of snow will be on the ground. Quebec's totals run a little bit higher with up to 15 cm possible in the area. 

Ottawa/Eastern Ontario

• Sunday: The system will finally ease on Sunday and continue to move east. By the time all is said and done, no more than 5 cm should have accumulated in Ottawa.

GTA and Southern Ontario

Sunday marks a return to seasonal temperatures after a foggy and cool Saturday.

"Visibility may be significantly and suddenly reduced to near zero," Environment Canada said of the fog. "If travelling, be prepared for areas of near zero visibility."