A polar vortex is currently hitting the United States, with schools closed in many parts of the country and at least four ...

The United States is preparing for a severe drop in temperatures and an icy onslaught as it anticipates the season's coldest ...

Damond Benningfield A somewhat alarming new phrase entered the American lexicon when parts of the United States were plunged into an especially bitter deep freeze in January 2014: “polar vortex.” ...

The National Weather Service issued extreme cold warnings in more than a dozen states, with "record-breaking cold temperatures" expected through Friday. Another polar vortex to send temperatures ...

The coldest temperature in the lower 48 states this morning was minus-22 ... air associated with a displacement of the dreaded polar vortex. The next polar plunge will take place this weekend ...

SEE ALSO: Google's data centers, offices will use 100% renewable energy in 2017 The Upper Midwest, parts of the Plains states ... with a lobe of the polar vortex rotating south out of Canada ...

This is due to what meteorologists call the “polar vortex”, a jet stream of extremely ... to ABC in North Dakota’s largest city. In some states temperatures are so far below 0 degrees ...

It's similar to the polar vortex pattern from the winter that turned much of the country into a freezer for weeks at a time, breaking cold weather temperature records in numerous states.