Since the Ice Ages, the Polar Vortex has acted as a climatic gatekeeper. When breached, it unleashes freezing air into regions unprepared for it. This decade, those breaches are becoming more frequent ...

This latest polar vortex, one of approximately nine to hit the states so far ... is being pushed into the US and Europe due ...

Each year, a pocket of frigid air — the polar vortex — forms over the Arctic, and it usually stays north of the US. But some of it has broken off and is traveling south where it will hit the ...

Each year, a pocket of frigid air - the polar vortex - forms over the Arctic, and it usually stays north of the US. But some of it has broken off and is traveling south where it will hit the ...

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

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 ...

UPDATE: Jan. 3, 2018, 5:05 p.m. EST Nearly six inches of snow fell on Wednesday in parts of South Carolina as the storm intensified, and the Weather Service has raised forecast accumulations for ...

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 ...

“What is the polar vortex and why is it doing this to us?” asked NPR, echoing the complaints of increasingly fed-up Americans. Despite the heightened public awareness, however, a polar ...

Some computer models are hinting at a potentially far more formidable shot of cold weather during the second week of December, with a lobe of the polar vortex rotating south out of Canada ...