"An Arctic air mass is expected to plunge into the Central U.S. this week, with high confidence for widespread, ...

The polar vortex’s icy grip on much of America has Arctic Greenland seeming like a toasty vacation spot by comparison.

An Arctic blast tied in part to the polar vortex is driving record frigid air south from the Northern Plains toward the Gulf ...

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

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

The polar vortex is not synonymous with cold snaps, but when it slides toward the United States, the polar jet stream can ...

The level of cold may be record-breaking for some central ... There have been several polar vortex episodes across the United States this winter, with the mass of freezing air surging southward ...

How Alaska’s cold keeps ending up in the Lower 48 A few atmospheric factors — including the polar vortex — have come together to make the US the epicenter of cold this winter. One is a ...

Meteorologists explained that polar vortex intrusions are usually not disruptive, however, they can occasionally lead to cold air outbreaks and winter storms, which may affect travel conditions ...

Weather forces in the Arctic are combining to push the chilly air that usually stays near the North Pole into the U.S. and ...

WASHINGTON — The polar vortex hit its peak across much of America on Wednesday, with an icy grip that made Arctic Greenland seem like a toasty vacation spot in comparison. Even Mars has been ...