Tens of millions of Americans face dangerously cold weather on Monday as a pool of artic air is covering a huge area of the country. The dangerously cold weather comes from a blast of arctic air known as a polar vortex.

Many cities expect to break low temperature records and strong winds will make it feel even colder. Government offices and schools are closed today in several states and Indianapolis has even made it illegal for anyone to drive except for emergencies.

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