A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

This blast of cold weather is due to activity of the polar vortex.

A rare winter storm is getting set to slam the Gulf Coast and South, with cities from Texas to Florida under Winter Storm Warnings.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...

A brutal polar vortex is set to bury the Big Apple in snow Sunday and then deliver deadly single-digit temperatures that will ...

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.

It's going to get cold in Tennessee. Meteorologists predict freezing temperatures for much of the state. Here's the latest.

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...