Luckily, the polar vortex is expected to start retreating Friday and temperatures will warm up into the 30s on Saturday before climbing into the low 40s on Sunday, according to Morrone, the ...

A polar vortex collapse is set to bring freezing cold temperatures and travel chaos to large parts of the US and Canada in mid-March, with the UK also at risk of a temperature drop ...

A polar vortex collapse is expected over the next two weeks, with experts warning the weather phenomenon could send mercury plummeting across North America. The shock meteorological change is ...

For starters, the Arctic polar vortex is a band of strong westerly winds that form in the stratosphere between about 10 and 30 miles above the North Pole every winter.

The polar vortex has returned to the U.S., and frostbite-inducing temperatures are blasting millions of Americans.

The cause of this week's freezing cold is the polar vortex, a large area of low pressure, cold air around the Earth's poles.

LOUISVILLE, Ky. — Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains on the heels of weekend storms that pummeled the Eastern U.S ...