Vapour rises from the St. Lawrence River near Montreal on Thursday morning. (CBC)

From the Prairies to the Maritimes, Canadians faced another day of bitter cold, with a wind chill blast making it feel like –30 to –50 in some regions.

The Arctic air mass sparked wind chill warnings in parts of southeastern Saskatchewan, southern Manitoba, northern Ontario, Quebec, northern Nova Scotia and P.E.I.

On Thursday Prince Edward Island became ensnared in the cold snap. A day earlier, temperatures hovered around a relatively balmy 2 C, but had plunged to –20 C by Thursday morning, with the wind chill making it feel like –28.

Environment Canada issued a wind chill warning for the area, with the wind expected to make temperatures feel like –40 later in the day.

Parts of southern Saskatchewan, which had the dubious honour of recording some of the lowest temperatures across the country in the morning, were also under wind chill warnings. In Regina, the temperature dropped to –34 C, with the wind chill making it feel like –47.

Warnings were also issued in Winnipeg, which started off a bit warmer than the day before, with the wind chill making it feel like –43, a tad higher than the –50 wind chill on Wednesday morning.

No warnings were in effect for Toronto, Ottawa or Montreal, though the wind chill made it feel like –23, –33 and –31 respectively.

But wind chills in the –45 to –50 range Thursday morning led to warnings in parts of northern Ontario and central, northern and eastern Quebec.

Warnings were also issued for Fredericton and Charlottetown, where wind chill values were expected to dip below –35 and –38 respectively.

The temperature in Halifax hovered around –15 C in the morning, with the wind chill making it feel like –22, but alerts were posted for parts of the north, where wind chills ranging from –35 to –41 were forecast for Thursday night and Friday morning.

By Friday, the cold was expected let up in some parts of the country. The Prairies were expected to see more normal temperatures and Ontario and Quebec should start to feel some relief by Saturday.