Anytime we get an Arctic air blast down this far south, this is an artifact of the polar vortex rearing its ugly head,” said climatologist Barry Keim .

The cold temperatures are coming from a not uncommon expansion in the Polar Vortex, which are counter-clockwise rotating air ...

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

Snow totals were rivalling all-time records. Officials were urging residents to take precautions and stay off roads.

Abnormal weather events and severe winter storms could be caused by a disrupted polar vortex. Find out here how the polar ...

A winter storm sweeping through the U.S. South on Tuesday was dumping snow at levels millions of residents haven’t seen ...

The first-ever blizzard warnings were issued near the Texas-Louisiana border Tuesday as Winter Storm Enzo blew through, ...

These conditions are all thanks to a familiar sounding occurrence: the polar vortex, a large area of low pressure ... The ...

NEW ORLEANS -- The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar ...

A rare winter storm has turned the South into an unlikely winter wonderland this week, giving cities like New Orleans more ...