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

The polar vortex is coming back. After a half-month hiatus, frigid air will again surge across the United States beginning this weekend through next week, as the unusually cold blob of air dips ...

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 ...

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 Midwest has all but shut down amid subzero temperatures, howling winds and snow. Transportation has slowed, mail in ...

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 ...

In February, a polar vortex caused the temperature to drop to -10 degrees Fahrenheit in Boston in the northeast United States, with wind chills reaching -39 degrees. Usually, the average minimum ...

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.