A lobe of the polar vortex will arrive in the United States this weekend, bringing the lowest temperatures in years and snow and ice to the East and Deep South.
However, a deep freeze, thanks to the polarvortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and ...
The coldest weather of the season to date will be due to a phenomenon called a polarvortex, an upper-level jet stream that typically circulates around both the North and South Poles, but can push ...
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