Extreme weather: U.S. weather records
Published On: Nov 14 2012 01:15:25 PM EST Updated On: May 21 2013 09:07:31 AM EDT
A massive tornado hit Moore, Okla., on Monday. Fifty-one have been officially confirmed dead, but the death toll is expected to rise. Take a look at some of the other extreme weather events the U.S. has faced.