Crews haul away a mangled truck on Sunday, June 2, that storm chasers Tim Samaras, his son Paul Samaras and Carl Young were using to track the tornado that hit El Reno, Oklahoma. The three men, who had devoted their lives to hunting powerful storms died in the middle of the chase. Seventeen tornadoes were reported in the Oklahoma City and St. Louis areas on Friday, May 31. Jason Morris/CNN
Dustin Horn, second from left, helps his parents, JoAnn and Fred Horn, salvage items from their home on June 2, two days after a tornado ripped through El Reno, Oklahoma. Joe Raedle/Getty Images
Mark Reynolds sifts through debris to salvage personal items in El Reno on Saturday, June 1. Justin Sullivan/Getty Images
Downed trees sit in the parking lot of the Canadian Valley Technology Center in El Reno on June 1. Justin Sullivan/Getty Images
An overturned airplane sits amid rubble at the Canadian Valley Technology Center in El Reno on June 1. Justin Sullivan/Getty Images
Bill Thesing, who was injured in his home when a tornado hit, returns from the hospital to to salvage items from his home with the help of his friend Tammy Hicks on Saturday, June 1, in El Reno, Oklahoma. Joe Raedle/Getty Images
Yvonne Merritt stands among the things she was able to save from her home in El Reno on June 1. Joe Raedle/Getty Images
Mikie Hooper collects her belongings from her RV, which was destroyed by a tornado in El Reno, Oklahoma, on June 1. BILL WAUGH/Reuters/LANDOV
High winds left sheet metal wrapped around the branches of this tree along Route 66 in El Reno on June 1. BILL WAUGH/Reuters/LANDOV
Two pickup trucks are pictured stuck in high water along North West 23rd Street in El Reno on June 1. Heavy rain has caused flooding in the area. BILL WAUGH/Reuters/LANDOV
The tornado severed the pole supporting these power lines, leaving the remnants dangling near El Reno on June 1. BILL WAUGH/Reuters/LANDOV
Two men walk by a damaged OKC-West Livestock Market building near El Reno on June 1. BILL WAUGH/Reuters/LANDOV
An American flag flies above the destroyed remains of a mobile home in El Reno on June 1. LARRY W. SMITH/EPA/LANDOV
The tail section of a plane juts out of a crumbling building at a technology school in El Reno on June 1. LARRY W. SMITH/EPA/LANDOV
Kim Vanaken, left, consoles her sister Angela Coble, center, along with Amber Kelley while looking at what is left of Coble's house in El Reno on Saturday, June 1. LARRY W. SMITH/EPA/LANDOV
A man searches through the rubble of a home in El Reno on June 1. A large part of Moore, Oklahoma, was without power, as were parts of El Reno and Union City. LARRY W. SMITH/EPA/LANDOV
Destroyed trees and cars stand along a road at the Canadian Valley Technology Center in El Reno on June 1. BILL WAUGH/Reuters/LANDOV
A tornado forms from a severe thunderstorm near Meridian outside of Oklahoma City on Friday, May 31. GENE BLEVINS/Reuters/LANDOV
Shredded trees and debris are scattered along Interstate 40 near El Reno, Oklahoma, on May 31. BILL WAUGH/Reuters/LANDOV
A semi tractor-trailer damaged by a tornado lies along I-40 just east of El Reno on May 31. BILL WAUGH/Reuters/LANDOV
Oklahoma Highway Patrol Troopers inspect an overturned vehicle sitting alongside I-40 near El Reno on May 31. BILL WAUGH/Reuters/LANDOV
Storm clouds that produced a tornado roll through near El Reno on May 31. BILL WAUGH/Reuters/LANDOV
Lightning from a tornadic thunderstorm strikes in Cushing, Oklahoma, on May 31. GENE BLEVINS/Reuters/LANDOV
Tornado debris hangs from a billboard sign, which was destroyed along Interstate-40 near El Reno on May 31.