The polar vortex is a large upper-level, low-pressure area or circulation that typically resides above the Arctic Circle.

A polar vortex broke, and severe temperatures are set to dominate most of the United States, including the Midwest, in the coming days.

Arctic wind patterns create a sort of wall around the pole that prevents frigid air from trickling southward. That wall that ...

A strong polar vortex doesn't cause cold weather — it does the opposite. Here's what to know about polar vortices, how they work.

A rare atmospheric collision is poised to deliver unprecedented Arctic air across North America in December 2025. On November ...

When you're expecting a polar vortex to hit, don't forget about the birds that are in your garden by keeping them safe during ...

The atmosphere is very unsettled, especially with the recent weakening of the polar vortex, which has increased the chances ...