Some of the coldest temperatures are expected in Montana, and avalanche warnings have been issued in Utah, Colorado and ...

The tenth and coldest polar vortex of the season is blasting across the US this week. More than 58million Americans are under ...

A National Weather Service map shows what is forecast to be the coldest polar vortex in the US this winter (Picture: National Weather Service) The tenth and coldest polar vortex of the season is ...

Red zones are predicted in New York, Kansas and Virginia as a winter storm continues to grow in the United States.

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

BISMARCK, N.D. — 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 ...

A polar vortex is expected to grip the Rockies and the northern Plains today as harsh weather moves west, bringing what the National Weather Service has warned is 'life-threatening cold' to the ...

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

A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central and eastern states this week, bringing some of the coldest air of the ...

he term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping the North Pole The term “polar vortex” usually refers to the ...