Canada's weather service issued extreme cold weather warnings on Saturday for western Canada, including the provinces of Alberta province, British Columbia, Saskatchewan and Manitoba.

The western Canada are bracing for extreme cold temperatures this weekend, with wind chills of minus 50 Celsius expected in some areas.

"Frostbite can develop within minutes on exposed skin," said the warning from Environment Canada, adding that the extreme cold could last until Monday morning in some regions.

"If it's too cold for you to stay outside, it's too cold for your pet to stay outside," the warning said.

Meanwhile, Atlantic Canada is preparing for yet another wintry blast this weekend and parts of western Nova Scotia could be blanketed by up to 40 cm of snow, said Environment Canada.

Strong wind gusts of 40 to 60 km/h are also forecasted, threatening to reduce visibility and to make road conditions treacherous.