Arctic blast, polar vortex

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...
This blast of cold weather is due to activity of the polar vortex.
The intense cold snap that has settled over most of Canada and the U.S. has been dubbed a “polar vortex’, but Environment ...
The polar vortex is a large area of low pressure, winds, and cold air surrounding both of the Earth’s poles, according to the ...
The coldest air of the season will sweep into the province this weekend, courtesy of a polar vortex. It has been a relatively mild winter so far, so this drop in temperature will surely feel like ...