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 ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

These type of polar vortex disruptions — stretching or moving entirely out of the North Pole — are happening more frequently, ...

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?

Parts of all states in the lower 48 woke up to subfreezing temperatures Tuesday due to a weather pattern that will keep ...

An extended stretch of brutal cold is on the way courtesy of an arctic outbreak. These frigid temperatures are expected to ...

Let's jump into the polar vortex on this week's Weather IQ. The polar vortex refers to a large area of cold air that sits in the upper atmosphere over the poles. This area of air is kept in place in ...

The polar vortex has triggered freeze warnings and advisories across Texas, threatening human safety and infrastructure.

"Luckily for Florida, the cold front, although still strong, is weakening as it moves eastward. There is still the chance for some isolated intense storms on Monday, especially across the central and ...