It seems that Santa Claus will bring more snow with him from the North Pole.

Environment Canada has issued a snowfall warning across Toronto and the GTA for Sunday, with 15 to 20 centimetres expected by the time the snow tapers in the evening. Snow is expected to begin in the late afternoon Christmas Eve, and continue overnight.

While the snow is great news for reindeer looking to get St. Nick’s sleigh safely through his Christmas deliveries, travellers bound to the ground should plan for limited visibility, and are being encouraged by Environment Canada to adjust travel plans if possible.

A mix of sun and cloud is expected for morning, with cloud cover coming in around noon Sunday.

Christmas Day will see a high of -4 C and localized blowing snow. A high of -8 C is expected Boxing Day, with a 30 per cent chance of more flurries.

The City of Toronto tweeted that snow plowing and salting operations will continue overnight on Sunday and through to Christmas morning.

“Please keep a safe distance behind the plows and do not try to pass in between them,” a tweet stated.

Toronto police responded to at least 20 collisions by Sunday night, said Toronto police spokesperson Lorieann Broadfoot.

“There were quite a few collisions … going up the hill was a challenge in some areas in the city. Cars were sliding into poles, into bus shelters, and into ditches but there was nothing serious to report,” Broadfoot said.

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