Tornadoes in America: Joplin, Missouri

This frame grab from video shows a massive tornado on Sunday, May 22, 2011, outside Joplin, Mo. The tornado tore a 6-mile path across southwestern Missouri killing at least 89 people as it slammed into the city of Joplin, ripping into a hospital, crushin

Residents of Joplin, Mo, walk west on 26th Street near Maiden Lane after a tornado hit the southwest Missouri city on Sunday evening, May 22, 2011. The tornado tore a path a mile wide and four miles long destroying homes and businesses. (AP Photo/Mike Gul

Many signs and paintings on the outside of destroyed or damaged homes informed rescuers that everyone was safe and accounted for in Joplin, Mo, on Monday, May 23, 2011. This home was one of hundreds that were damaged or destroyed by a tornado that struck

Damaged vehicles litter the parking lot of St. John's Hospital in Joplin, Missouri, after a tornado hit the Missouri city on Sunday, May 22, 2011

A man carries a young girl who was rescued after being trapped with her mother in their home after a tornado hit Joplin, Mo. on Sunday evening, May 22, 2011. The tornado tore a path a mile wide and four miles long destroying homes and businesses. (AP Phot

A car sits among rubble from a tornado Monday, May 23, 2011, in Joplin , Mo. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses. (AP Photo/Jeff Roberson)

Ashley Stephens holds a ferret she rescued from the home of a missing woman while helping a friend collect belongings Monday, May 23, 2011, in Joplin, Mo. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and

Sherman James cleans up from the tornadoes that devastated Alabama last month at his home in Tuscaloosa, Ala., on Monday, May 23, 2011. James said he is praying for midwesterners in places like Joplin, Mo., following a round of killer twisters there. (AP

Josh Ramsey looks through the rubble of what is left of his mother-in-law's home following a tornado Monday, May 23, 2011, in Joplin , Mo. A massive tornado that tore a six-mile path across southwestern Missouri killed at least 89 people as it smashed th