Volunteers throw tornado debris in a burn pile on April 30, 2014 in Vilonia, Ark.

Relatives of Bob Butts help look for items to salvage from his home after it was destroyed by a tornado on April 30, 2014 in Louisville, Miss.

Michelle Butts, left, falls to her knees as she reacts to seeing her parents' home for the first time after it was destroyed by a tornado on April 30, 2014 in Louisville, Miss.

Bob Butts, center, comforts his daughter, Michelle Butts, left, along with his wife, Kay Butts, right, as Michelle arrives from out of town to see the house for the first time after it was destroyed by a tornado on April 30, 2014 in Louisville, Miss.

Before and after aerial images, taken on April 23 2013 and April 28, 2014, show the path of destruction after a tornado hit Baxter Springs, Kansas.

Before and after aerial images, taken on April 23 2013 and April 28, 2014, show the path of destruction after a tornado hit Baxter Springs, Kansas.

Before and after aerial images, taken on April 23 2013 and April 28, 2014, show the path of destruction after a tornado hit Quapaw, Kansas.

Kayla Holcey, right, holds her 8-month-old son Kristian Hampton as she looks at the debris that was once her home in Crawford, Ala., April 29, 2014

Derrick Price helps push a mattress from the second floor bedroom as he helps salvage what he can from a friends apartment after a tornado in Tupelo, Miss., April 29, 2014.

Gunner Goad helps a family friend salvage what he can from his business that was destroyed by a tornado in Tupelo, Miss., April 29, 2014.

A child is pictured in a kayak floating inside a house in Gulf Breeze, Fla., April 30, 2014.

Austin Hargrove, left, and Haley Hracke, right, help recover personal items from a friends home that was destroyed by Sunday's tornado, April 29, 2014, in Vilonia, Ark.

Theresa Long reacts inside her destroyed house in Mayflower, Ark., April 29, 2014.

Friends, seen through debris, comfort each other at the site of a a home destroyed by Sunday's tornado, April 29, 2014, in Vilonia, Ark.

Aerial view of the central town after a tornado hit Vilonia, Ark., April 28, 2014.

Sam Smith takes a break from helping a family friend salvage what he can from his business that was destroyed after a tornado hit, April 29, 2014 in Tupelo, Miss.

Teresa Ingram looks for belongings in the debris after a tornado passed through destroying Billy Barbs mobile home park, April 29, 2014, in Athens, Ala.

A scene from the tornado in Decatur Ala., April 28, 2014.

A U.S. flag sticks out the window of a damaged hot rod car in a suburban area after a tornado near Vilonia, Ark. April 28, 2014.

Constance Lambert embraces her dog after finding it alive when returning to her destroyed home in Tupelo, Miss., April 28, 2014.

Residents survey damage along a street in Tupelo, Miss., April 28, 2014.

Dead and injured cattle lay in a field near Vilonia, Ark., April 28, 2014. A tornado's path ran through the field April 27, 2014.

Nursing home personnel assist a resident as she is wheeled to a waiting bus outside a Louisville, Miss., nursing home, April 28, 2014 after the facility and the Winston Medical Center next door were heavily damaged by a tornado.

A resident rushes past an SUV that was tossed by a tornado in Four Corners, Miss., April 28, 2014.

Jimmy Sullinger sits and watches lightning as a storm approaches the gas station where he works, April 28, 2014, in Berry, Ala.

Damaged buildings are seen throughout Tupelo, Miss., April 28, 2014, after tornadoes tore through the region.

Swan Creek Community residents check the weather from the underground shelter in Limestone County, south of Athens, Ala., April 28, 2014.

Friends and family sift through debris at a home in Vilonia, Ark., after it was destroyed by a tornado, April 28, 2014.

Jodi Walls pushes a box of belongings out of a friend's house while cleaning up after a large tornado tore through Tupelo, Miss., April 28, 2014.

Seventeen year-old Deanna Locke and her siblings including, from left, Charlotte, 13; Drew, 9; and Trinity, 11; examine a downed tree across the street from their home in Tupelo, Miss., after a suspected tornado moved through town earlier on April 28, 2014.

Tabitha Hawk posted this photo on Twitter on April 28, 2014 after a storm in Tupelo, Miss.

Steven Heicher posted this photo on Twitter on April 28, 2014 with the caption, "MAJOR damage in North Tupelo. This is serious guys!"

Brandy Davis posted this photo to Twitter on April 28, 2014, showing damage after a tornado in Tupelo, Miss.

People walk between two destroyed houses in Mayflower, Ark., April 28, 2014, after a tornado struck the town April 27, 2014.

Bob Hessee checks out property owned by a friend and damaged by a tornado in Baxter Springs, Kan., April 28, 2014.

Residents view damage from a tornado in Baxter Springs, Kan., April 28, 2014.

A tornado-damaged home is covered by tarps in Baxter Springs, Kan., April 28, 2014.

The remains of a home damaged by a tornado, April 27, 2014, in Baxter Springs, Kan., April 28, 2014.

Residents survey the damage in a residential neighborhood struck by a tornado, April 28, 2014.

Extensive tornado damage is seen in Mayflower, Ark., April 27, 2014.

Residents assess storm damage in Mayflower, Ark. after a tornado ripped through the town, April 27, 2014.

A scene from the tornado North of Searcy Ark., April 27, 2014.

Storm clouds loom near Baxter Springs, Kan., April 27, 2014.

Katie McCoy posted this image on Twitter with this caption: "@mikebettes tornado that touched down here in Southeast KS!," April 27, 2014.

Twisted trees and power lines are visible following a tornado in Baxter Springs, Kan., April 27, 2014.

A man walks past a wrecked automobile and RV on Interstate 40 in Mayflower, Ark., April 27, 2014.

Trailers and motor homes are piled on top of each other at Mayflower RV in Mayflower, Ark., April 27, 2014.

John Ward, an automobile and RV dealer, looks an tornado damage to one of his trucks in Mayflower, Ark., April 27, 2014.

Storm clouds loom over a farm near Baldwin City, Kan., April 27, 2014.

A K-9 rescue unit surveys storm damage in Baxter Springs, Kan., April 27, 2014.

A police officer talks to residents in Baxter Springs, Kan. after a storm tore through the town, April 27, 2014.