The polar vortex, a swirling mass of cold air located over the polar regions, is responsible for the cold. COLUMBUS, Ohio — ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

Several businesses and organizations have announced closings and cancellations ahead of the extremely cold temperatures.

Part of Mississippi under extreme cold warning after winter storm dropped snow across the Gulf Coast. When will temperatures ...

Polar Vortex Set to Envelop Much of US in Freezing ... "That will actually linger for several days for much of the southern U.S., Ohio Valley, mid-Atlantic and the Northeast as we get into early ...

Ohio Valley, mid-Atlantic and the north-east as we get into early to mid-next week,” he said. The coldest weather of the season to date will be due to a phenomenon called a polar vortex ...

Riley Leonard opened the national championship game with a do-it-all drive that made it appear the Notre Dame quarterback ...

"That will actually linger for several days for much of the southern U.S., Ohio Valley ... to date will be due to a phenomenon called a polar vortex, an upper-level jet stream that typically ...

A polar vortex of brutally cold air that normally circles ... Sub-zero wind chills are also forecast to reach the Southern Plains and Ohio Valley on Sunday night into Wednesday, while hazardous ...