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 .

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

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

The polar vortex is a large area of low pressure and ... What was the German vehicle attack? Suspect of New Orleans murders searched for it, FBI says IRS sending stimulus checks this month to ...

The vast majority of Americans are about to get an extended taste of frigid Siberian weather. Another polar vortex disruption ...

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