Deadliest tornadoes in U.S. history

POSTED: 01:09 PM PDT May 31, 2011    UPDATED: 07:21 AM PDT May 21, 2013 
Tornado file

A tornado that ripped across central Oklahoma on Monday killed at least 24 people. Here's a look at the 10 deadliest tornadoes in U.S. history, according to the NOAA.