A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central ...

The polar vortex has sent temperatures plummeting across the US, affecting over 95 million people. Schools are closed, pipes are bursting, and temporary shelters are being set up for the homeless from ...

"polar vortex" usually refers to the gigantic circular upper air weather pattern in the Arctic region, enveloping the North ...

A severe cold wave, driven by a polar vortex, has struck the central and northern U.S., leading to dangerous temperatures and significant snowfall. At ...

More than 95 million people are facing gripping cold Tuesday as a polar vortex sends temperatures plunging to record levels, ...

Harsh weather moved west as a polar vortex was expected to grip the Rockies and the northern Plains after winter storms ...

This week, parts of the U.S. are experiencing the 10th and coldest polar vortex event this season. Weather forces in the Arctic are combining to push the chilly air into the U.S. and Europe.

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter.

BISMARCK, N.D. — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies ... from the Canadian border to Oklahoma and central Texas, where the Arctic ...

BISMARCK, North Dakota — More than 95 million people in the United States were facing numbing cold on Tuesday as a polar ...