Dozens of US states will endure the lowest temperatures they have felt in years next week as a polar vortex brings ...

Winds could threaten small signs of progress firefighters made over the weekend with the devastating Pacific Palisades Fire.

With Monday’s snowfall still piled high on lawns and driveways, much of the Mid-Atlantic looks like the inside of a freezer. Thanks to the polar vortex, it feels like one, too. Why is it so cold?

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill below zero. The polar vortex, a swirling mass of Arctic air typically ...

As a deep winter chill begins to take over the northern half of the country, blizzard warnings were issued in three states -- harbingers of another major winter storm. Around 60 million Americans in ...

But what about protecting your home from the cold? The polar vortex is an area of swirling cold air in the Earth's polar regions. During winter, the polar vortex at the North Pole expands ...