In the coming days, Americans are being warned to brace themselves for a period of extreme cold brought on by this year's polar vortex, Bloomberg Green reported. The vortex — which hit the U.S ...

The coldest burst of Arctic air this season is coming to put an icy exclamation point on America’s winter of repeated polar vortex invasions, meteorologists warn. And it will stay frozen there ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...