Polar vortex will bring frigid air back to many states after weekend storm
After a winter storm this weekend, the polar vortex will return, bringing subzero temperatures to around 80 million people ...
Very cold weather coming. US about to get 10th and chilliest polar vortex this winter
Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...
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US braces for 10th polar vortex of season as all but 3 states to be gripped by frigid wind
As the polar vortex stretches its icy grip, America braces for a winter like no other. Discover the forces behind this ...
Why the US is freezing as the planet reaches record warmth
Yet despite the cold temperatures over the continent, the planet as a whole has set a new temperature record yet again: ...