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 latest blast of frigid air will linger across the central and eastern U.S. through much of the week while another winter ...

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

Harsh cold descended on the nation's midsection Monday as a polar vortex gripped the Rockies and Northern Plains after winter storms pummeled the eastern U.S. over the weekend, killing at least 17 ...

The FOX Forecast Center is tracking a lobe of the polar vortex that is bringing extreme cold to the hundreds of millions across the lower 48 and record extreme cold.

A winter storm is expected to bring disruptions to the region due to snow and ice forecast to fall Wednesday into Thursday ...

LOUISVILLE, Ky. (AP) — Harsh weather moved west on Monday as a polar vortex was expected to grip the Rockies and the northern ...

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

Ushering in the vortex is a winter storm, the third one of the week, which will track from the Intermountain West on Friday to the East Coast on Sunday.

The polar vortex is coming back ... Now, the pattern is returning: More than 80 million people across the country are forecast to experience subzero temperatures through the end of February.

The heaviest accumulations, possibly a foot (30.5 centimeters) or more, were expected in upstate New York and portions of ...