Oklahoma has more violent tornadoes than anywhere else in the U.S.
Oklahoma has experienced more violent tornadoes than any other state, according to data collected from 1950 to 2011.
Source: ustornadoes.com
Oklahoma is also among the states with the strongest tornadoes.
Source: ustornadoes.com
Oklahoma sits in the middle of "Tornado Alley," a region where cold air from the Rocky Mountains, moist air from the Gulf of Mexico, and dry air from the desert meet, which can form tornadoes.
Source: kfor.com
This is the path of tornados that struck Moore, Oklahoma, in 1999, 2003, and Monday.
Source: ustornadoes.com
