A lobe of the Polar Vortex is going to swing through Ontario just north of Michigan. The upper-air forecast gives us an easy ...

A developing winter storm is threatening to drop snow, sleet and freezing rain on parts of Texas, Oklahoma and Arkansas ...

Arctic winds from a powerful polar vortex are sweeping across several states, bringing dangerously cold temperatures and ...

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the US, Europe ...

A polar vortex is hitting most of the country in the next few days. What does it mean? How to protect yourself and pets ...

A polar vortex is bringing arctic air into the country next week. Forecast maps show when freezing temperatures will sweep ...

The effects of the polar vortex are expected to reach Texas on Monday and bring freezing or below-freezing temperatures ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it?

Cold air from the arctic sometimes dips southward across the American plains. What to know about the polar vortex.

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region. This vortex ...

A polar vortex cold snap is set to hit the southern U.S. in the first full week of January. How could that affect? Here's ...