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

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill ...

A huge swath of the United States was blasted with ice, snow, and wind on Monday as the polar vortex that dipped south over ...

Storm Blair has hit most of the U.S., bringing freezing temperatures to Texas. Precipitation later this week could mean snow ...

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

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

The National Weather Service forecast shows that two cold fronts are set to hit Florida at the beginning of this month.

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

Storm Blair is expected to move through Ohio on Sunday, bringing snow and sleet accumulations of between 5 and 9 inches on ...

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 ...