Extreme Cold Vortex Grips U.S.

Brutally cold temperatures continue to grip the country, crashing decades-old records and forcing many schools and businesses to close. What's behind this cold snap and is more extreme weather ahead in 2014?

Save videos for later by signing up or logging in

With "My Queue" you can quickly save videos to watch later.

To add an item to your queue just click the sign next to the video.

Once you've added a video visit "My Queue" to start watching!