A powerful polar vortex is set to bring dangerously cold temperatures to the US ... A polar vortex is a massive circular weather pattern in the Arctic that traps the coldest air near the North ...

Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...

The polar vortex could bring a cold blast to millions across America ... “AccuWeather long-range experts say a major shift in the weather pattern could bring frigid air to parts of the United ...

RELATED: What is the polar vortex? How it’s responsible for dangerous ... cold for the Prairies and northern Ontario with wind chills into the -40s. That won’t be the coldest weather that ...

The weather phenomenon is expected to develop in mid-March, bringing severe cold temperatures across parts of Canada and the United States. It may also impact the UK and Europe. A polar vortex ...

Different weather ... polar air out of the Canadian Arctic,” Maue said. “It’s the depths of winter. Everything signals extreme biting, winter cold. Obviously this isn’t the first polar ...

The latest brutal cold snap is again courtesy of the polar vortex — a large ... According to the weather service, a rapid "warming trend" will set in by this weekend. "Temperatures return ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel disruption across North America. The weather phenomenon is expected to develop in mid-March, ...