A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...

When there are disturbances in which the Jet Stream weakens, it can become wobbly. This allows the cold air to plunge southwards. A disrupted polar vortex does not happen every year. Very much so what ...

Much of the country is in for widespread and dangerously cold temperatures beginning this weekend — and lasting through much of next week — as a lobe of the polar vortex over northern ...

It looks like it could get even colder heading into next week. Within the last decade, the phrase 'polar vortex' has become popularized in the weather world. In fact, you may have heard it getting ...

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not ...

The National Weather Service is predicting the temperature to be around 22 degrees at noon during the swearing-in, the ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.