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US to get 10th and 'most severe' polar vortex as arctic blast plunges most of country into 'extreme cold'
The US is preparing for its 10th cold snap caused by the polar vortex this season as meteorologists warn it could be the ...
Very cold weather is coming. US about to get 10th and chilliest polar vortex this winter
The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar ...