Patricia Daugherty searches for her belongings after her home was destroyed by a tornado on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

Residents search for personal belongings after a tornado destroyed their home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

Residents search for personal belongings after a tornado destroyed their home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

Residents search for personal belongings after a tornado destroyed their home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

Arlington police officer Rick Stewart (L) and Tarrant County constable Clint C. Burgess (C) rescue a dog that belongs to David Lowe's (R) daughter after a tornado destroyed her home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

David Lowe carries his daughter's dog, Phoebe, after the dog was rescued from the rubble of a destroyed home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

A resident works to clean up after a tornado damaged his home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

April Bridges pauses while digging through the remains of a house she was at when it was destroyed by a tornado on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damage. (Photo by Tom Pennington/Getty Images)

Residents search for personal belongings after a tornado destroyed their home on April 3, 2012 in Arlington, Texas. Multiple tornadoes touched down across the Dallas/Fort Worth area causing extensive damge. (Photo by Tom Pennington/Getty Images)