A wet Christmas is more likely than a white one in much of Eastern Canada, with a warm and windy storm expected to hit southern Ontario, Quebec and the Maritimes.
The Weather Network anchor Kim MacDonald told CBC News that on Christmas Day winds could gust up to 80 km/h in Ontario's Niagara region, and almost 100 mm of rain could fall in Fredericton.
"We're talking about two systems merging — a lot of very warm air," MacDonald said.
Environment Canada said in a special weather statement that a low-pressure system is developing over the central U.S. that will strengthen over the Great Lakes before bringing mild, humid air to the east.
"Christmas Eve will be rainy, with temperatures ranging from 0 to 10 degrees Celsius, depending on the region," the weather agency said.
There is also a risk of coastal flooding, as well as a snowpack in the Maritimes that will be prone to melting in the unseasonably warm weather.
Western Canada has more active weather than the east at the moment, but looks calmer on Christmas Day.
To watch the forecast, watch the above video.
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