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 ...

Data from a polar vortex splitting during 2002’s Southern Hemisphere sudden warming event helps expand models to accommodate ...

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 ...

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 ...

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

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 ...

A pinwheeling section of the polar vortex is clearing customs at the Canadian ... the Midwest and Plains states will see a renewed Arctic blast, with dangerously cold wind chills affecting NFL ...

The plunging polar vortex brought subfreezing temperatures Tuesday to some of the southernmost points of the U.S., threatening to dump snow on parts of Texas and Oklahoma in coming days and ...

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.” ...

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.

10th polar vortex of the season hits the U.S. Here’s what to know With record snow in New Orleans last month and drought and destructive wildfires in Southern California, this winter has not ...