Polar vortex returns, Prairies expected to be hardest hit
A polar vortex is primed to blast cold air across Canada. (Reuters file photo)
The buzzword of last winter is back.
A polar vortex - a large pocket of freezing cold air - is making an early appearance and is expected to send a blast of arctic air over Canada, hitting the Prairies hardest.
"Without question, the coldest Arctic air of the season will dive south from northern Canada," Weather Network meteorologist Tyler Hamilton says on the station's website. "Along and behind the passage of the cold front snow will develop, and as the Arctic high builds upsloping snow will bring significant snow to some areas.
"The largest temperature change will be for Lethbridge, Alta., which will see a high of +14 C on Saturday. By Tuesday, that will fall to -13 degrees Celsius."
Lethbridge is 213 km south of Calgary.
Accuweather.com says the vortex will expand southward and eastward to affect about 200 million people in the U.S. as the week progresses.
Just went to the mailbox its that time to find a hot neighbor and cuddle #PolarVortex— Dr. Chuck (@Chuck1079) November 8, 2014