Deadly storms rake Midwest

Patrick O'Banion salvages items from his devastated Joplin, Mo. home Monday, May 30, 2011. An EF-5 tornado tore through much of the city May 22, damaging a hospital and hundreds of homes and businesses and killing at least 139 people. (AP Photo/Charlie Riedel)

JOPLIN, MO - MAY 29: Katlyn Wilkins (in tree) and Andrea Wilkins Morelli work on securing an American flag in a tree as they deal with the destruction caused by a massive tornado that passed through the town killing at least 139 people on May 29, 2011 in Joplin, Missouri. President Barack Obama is scheduled to visit the town as it continues the process of recovering from the storm. (Photo by Joe Raedle/Getty Images) *** BESTPIX ***

President Barack Obama, second from left, with residents views damage from the tornado that devastated Joplin, Mo., Sunday, May 29, 2011. (AP Photo/J. Scott Applewhite)

US President Barack Obama pauses while speaking at Missouri Southern University May 29, 2011 during a memorial for victims of the Joplin, Missouri, tornado. Victims of the tornado continue to recover as 2011 becomes the deadliest year for tornadoes since 1953. The death toll stood at 142 one week after the tornado cut a path of death and destruction through the heart of this town of 50,000. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)

Joplin residents stand for a moment of silence during a memorial service Sunday, May 29, 2011, marking the one week anniversary of an EF-5 tornado which ripped a six mile long path of destruction through Joplin, Mo. and killed at least 139 people. (AP Photo/Charlie Riedel)

epa02757038 Kenzie Buffalo (L) plays catch with a baseball on the roof of what used to be her grandfather's house with her friend Sarah Koepke (R) in Joplin, Missouri, 28 May 2011, after a EF5 tornado hit the town of of Joplin, Missouri, 22 May 2011. The tornado caused damage to a large portion of the town and the city's hospital and school, killing 142 people. EPA/LARRY W. SMITH

JOPLIN, MO - MAY 28: Matt Teel cleans off a Jesus statue after they found it in St. Mary's church as they salvage what they can from the building that was destroyed when a massive tornado passed through the town killing at least 132 people on May 28, 2011 in Joplin, Missouri. As the town continues the process of recovering from the storm over 150 people are still missing and funerals have begun for the victims of the deadly tornado that struck on May 22. (Photo by Joe Raedle/Getty Images)

Tracey Presslor comforts friends and classmates of her nephew Will Norton at a news conference in Joplin, Missouri May 28, 2011. The family of Will Norton, missing since he was sucked from his vehicle by a deadly tornado March 22, 2011 while on his way home from his graduation with his father, confirmed Saturday that he had died. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

JOPLIN, MO - MAY 27: Stephen Dickson stands in front of his parent's home while on the lookout for looters at dusk five days after a massive tornado passed through the town killing at least 132 people on May 27, 2011 in Joplin, Missouri. Although the house has no roof, Dickson sometimes sleeps in the home to protect it from looting. The town continues the process of recovering from the storm which damaged or destroyed an estimated 8,000 structures. (Photo by Mario Tama/Getty Images)

JOPLIN, MO - MAY 27: The remains of a destroyed tree are seen five days after a massive tornado passed through the town killing at least 132 people on May 27, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm which damaged or destroyed an estimated 8,000 structures. (Photo by Mario Tama/Getty Images)

A view of the tornado's path, near Joplin High School, Friday, May 27, 2011, in Joplin, Mo. At least 126 people were killed and hundreds more injured when a tornado cut a destructive path through Joplin on Sunday evening. (AP Photo/The Joplin Globe, T. Rob Brown)

JOPLIN, MO - MAY 27: During a driving rain storm, Tracy Rogers, (C) and others look for items to salvage from a friends home that was destroyed by a massive tornado on May 27, 2011 in Joplin, Missouri. At least 132 were killed and an estimated 232 remain missing after the EF-5 tornado ripped through the town of about 50,000 on May 22. (Photo by Joe Raedle/Getty Images)

A vault is all that remains of the Commerce Bank in a devastated Joplin, Mo. neighborhood Friday, May 27, 2011. An EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 126 people. (AP Photo/Charlie Riedel)

JOPLIN, MO - MAY 27: Scott Anderson reaches for a piece of debris near his heavily damaged home after a massive tornado passed through the town killing at least 132 people on May 27, 2011 in Joplin, Missouri. Anderson said, \"It's like they dropped a bomb on us.\" The town continues the process of recovering from the storm which damaged or destroyed an estimated 8,000 structures. (Photo by Mario Tama/Getty Images)

JOPLIN, MO - MAY 27: A storm cloud passes over a communications tower following a thunderstorm five days after a massive tornado after a massive tornado passed through the town killing at least 132 people on May 27, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm which damaged or destroyed an estimated 8,000 structures. (Photo by Mario Tama/Getty Images)

A search and rescue team looks for victims at a devastated apartment complex in Joplin, Mo. Thursday, May 26, 2011. An EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 125 people. (AP Photo/Charlie Riedel)

A flag files at half staff over devastated Joplin High School in Joplin, Mo. Thursday, May 26, 2011. An EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 125 people. (AP Photo/Charlie Riedel)

JOPLIN, MO - MAY 26: Maggie Burlingane looks at what remains of her daughter's home after it was destroyed when a massive tornado passed through the town killing at least 125 people on May 26, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 26: Clothes are seen hanging in a closet inside a destroyed house after it was destroyed when a massive tornado passed through the town killing at least 125 people on May 26, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 26: Blanca Lopez holds her daughter, Bianca Lopez, as they wait in line with others to receive food, clothes and other donated items for the people who lost all their possessions when their homes were destroyed as a massive tornado passed through the town killing at least 125 people on May 26, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 26: Robert Elbert hands a photograph of Stephanie Elbert's mother and father to her after they found it among the remains of their house after it was destroyed when a massive tornado passed through the town killing at least 125 people on May 26, 2011 in Joplin, Missouri. The town continues the process of recovering from the storm. (Photo by Joe Raedle/Getty Images)

Darryl Strickland walks through what is left of his garage that was blown 50 yards along US 72 near Elgin, Ala., May 26, 2011, by Wednesday night's severe weather that raced across northwest Alabama.

Monroe County Sheriff's officers Allen Mulllis, left, and Jeff Branham examine the damage from a severe storm that damaged a trailer park, Thursday, May 26, 2011, in Bloomington, Ind. (AP Photo/Darron Cummings)

Close friend and neighbor Scott Taylor, left, checks on Sue Dilman shortly after a severe storm tore the roof off her home in Bloomington, Ind., Wednesday, May 25, 2011. Ed and Sue Dillman were both home at the time of the storm and were uninjured. Their home and surrounding barns were heavily damaged. (AP Photo/The Herald Times, Chris Howell)

epa02751346 Ryan Millikan (C) lifts a container to Nick Wongratananajcha (L) as they help Lee Morris (R) gather his possessions three days after a killer tornado ravaged neighborhoods in Joplin, Missouri, USA 25 May 2011.124 people are confirmed dead and hundreds of people are reportedly injured in the deadliest single tornado since 1953 that struck Joplin 22 May 2011. According to the National Weather Service the tornado has been classified as an FE5 with maximum winds in excess of 200 miles per hour (322 KPH). Officials have begun restricting access to the areas affected and are enforcing a nighttime curfew. EPA/TANNEN MAURY

epa02751538 A handout one-foot resolution, digital aerial image provided by GeoEye on 25 May 2011 of Joplin, Missouri, collected 24 May 2011 at approximately 9:30 a.m. EDT showing the remains of Joplin High School, located at 21st and Indiana, just two days after a EF5 tornado touched down on 22 May 2011 and destroyed most of the town. The image was collected by digital imaging aircraft owned by M.J. Harden, a GeoEye Company, based in Mission, Kansas. M.J. Harden flew an emergency mission for Missouri state officials to provide insight on relief efforts and emergency response, and to assess and measure damage to buildings, facilities, and other structures. EPA/M.J. HARDEN / GEOEYE / HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES

JOPLIN, MO - MAY 25: Alisha Kelly, of Neosho, gives away food and bottled water to residents and emergency workers on May 25, 2011 in Joplin, Missouri. \" We are just individuals who want to help,\" Kelly said. The tornado that ripped through the town of about 50,000 people May 22 is being called the deadliest single tornado in the U.S. in 60 years. (Photo by Julie Denesha/Getty Images)

A message is seen on the side of a building on Wednesday, May 25, 2011, in Joplin, Mo. A tornado tore through much of the city Sunday, wiping out neighborhoods and killing at least 122 people. Violent storms rumbled through the central U.S. on Wednesday, spawning tornadoes that turned homes into splintered wreckage, killing at least 14 people over two days and hampering rescue efforts in a city slammed by a massive twister days earlier. (AP Photo/Mark Humphrey)

Lori Haun removes the house letters from what remains of her devastated Joplin, Mo. home Wednesday, May 25, 2011. An EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 122 people. (AP Photo/Charlie Riedel)

A recovery crew looks for bodies in a destroyed church after a devastating tornado hit Joplin, Missouri May 25, 2011. The death toll from a monster tornado that ravaged Joplin, Missouri, rose to 125 on Wednesday after an overnight search turned up more bodies but no new survivors, authorities said. The tornado that wrecked up to a third of the city of 50,000 on Sunday was upgraded to an EF-5, or the highest rating possible on the Enhanced Fujita scale of tornado power and intensity. It had been rated an EF-4. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

Shirley Waits cries as she stands in what is left of her mother's home Wednesday, May 25, 2011, in Joplin , Mo. A massive tornado moved through Joplin Sunday night leveling much of the city. (AP Photo/Jeff Roberson)

Family and friends of a tornado victim clean-up and sort through debris, Wednesday, May 25, 2011, at a mobile home where one death occurred during a Tuesday, May 24, 2011 tornado in Chickasha, Okla. More than a dozen people died in the latest round of violent weather. (AP Photo/Sue Ogrocki)

A house is left as a pile of rubble after being destroyed by a tornado west of El Reno, Okla. on Tuesday, May 24, 2011. The high-powered storms arrived Tuesday night and early Wednesday, just days after a massive tornado tore up the southwest Missouri city of Joplin. (AP Photo/The Oklahoman, Chris Landsberger)

Rebecca Watts walks by a car stuck in a tree after being destroyed by a tornado north of El Reno, Okla. on Tuesday, May 24, 2011. The high-powered storms arrived Tuesday night and early Wednesday, just days after a massive tornado tore up the southwest Missouri city of Joplin. (AP Photo/The Oklahoman, Chris Landsberger)

Joplin High School sophomore Landan Taylor makes has way across the wreckage of the school's theater in Joplin, Mo., Tuesday, May 24, 2011. At least 116 people were killed and hundreds more injured when a tornado cut a destructive path through Joplin on Sunday evening. Classes at all Joplin schools have been canceled for the rest of the schoolyear after four schools were damaged or destroyed. (AP Photo/Mark Schiefelbein)

May 24, 2011 - U.S. - Richard Tsong-Taatarii - rtsong-taatarii@startribune.com -05/24/11-Roseville, MN ] At the Wildlife Rehabilitation Center of Minnesota, avian nursery coordinator Jessika Madison helped feed some of the nine blue heron chicks that were orphaned by the Tornado that hit Minneapolis on Sunday. The chicks have to be fed live minnows every 30/45 minutes while while they are awake. (Credit Image: © Richard Tsong-Taatarii/Minneapolis Star Tribune/ZUMAPRESS.com)

An official searches for a missing child near the lake shore after a tornado ripped through the Falcon Lake area of Piedmont, Oklahoma May 24, 2011. Several tornadoes touched down in Oklahoma on Tuesday afternoon, the largest one striking El Reno, west of Oklahoma City, and continuing to the northeast, the National Weather Service said. REUTERS/Bill Waugh (UNITED STATES - Tags: DISASTER ENVIRONMENT)

A half-mile-wide tornado moves north in Canadian County after having just crossed SH-3, the Northwest Expressway, west of SH-4 moving towards Piedmont, Okla. Tuesday, May 24, 2011. (AP Photo/The Oklahoman, Paul Southerland)

The remains of the house owned by Scott and M'Lynn McCann that was destroyed by a tornado west of El Reno, Okla., are shown Tuesday, May 24, 2011. Authorities say a series of tornadoes rolled through Oklahoma City and its suburbs at rush hour Tuesday. At least four people have been killed. (AP Photo/The Oklahoman, Chris Landsberger)

Neighbors pitch in to help recover items out of the home of Scott and M'Lynn McCann that was destroyed by a tornado west of El Reno, Okla. Tuesday, May 24, 2011. Authorities say a series of tornadoes that rolled through Oklahoma City and its suburbs at rush hour have killed at least four people and critically injured at least three children. (AP Photo/The Oklahoman, Chris Landsberger)

Armando Castillo retrieves personal items out of his truck that he was driving when it was swept off I-40 and destroyed by a tornado west of El Reno, Tuesday, May 24, 2011. Authorities say a series of tornadoes that rolled through Oklahoma City and its suburbs at rush hour have killed at least four people and critically injured at least three children. (AP Photo/The Oklahoman, Chris Landsberger)

Ken Haebaum stands in his mud-splattered kitchen after a tornado ripped through the Falcon Lake area of Piedmont, Oklahoma May 24, 2011. Haebaum and his wife sought shelter from the tornado in the hallway behind the door on the right side of the photo. Several tornadoes touched down in Oklahoma on Tuesday afternoon, the largest one striking El Reno, west of Oklahoma City, and continuing to the northeast, the National Weather Service said. The living room is seen in the background. REUTERS/Bill Waugh (UNITED STATES - Tags: DISASTER ENVIRONMENT)

Martha Gaines (L) walks among the rubble of her home after a tornado ripped through the Falcon Lake area of Piedmont, Oklahoma May 24, 2011. Several tornadoes touched down in Oklahoma on Tuesday afternoon, the largest one striking El Reno, west of Oklahoma City, and continuing to the northeast, the National Weather Service said. REUTERS/Bill Waugh (UNITED STATES - Tags: DISASTER ENVIRONMENT)

Jeannie Owens searches through a family member's destroyed home after a devastating tornado hit Joplin, Missouri May 24, 2011. A monster tornado killed at least 118 people in Joplin, when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

JOPLIN, MO - MAY 24: A search and rescue team search for survivors in a store which was destroyed when a massive tornado passed through the town killing at least 116 people May 24, 2011 in Joplin, Missouri. The tornado that ripped through the town of about 50,000 people May 22, is being called the deadliest single tornado in the U.S. in 60 years. (Photo by Mario Tama/Getty Images)

JOPLIN, MO - MAY 24: Paul Wright attempts to salvage items from a family member's home after it was destroyed when a massive tornado passed through the town killing at least 116 people May 24, 2011 in Joplin, Missouri. The tornado that ripped through the town of about 50,000 people May 22, is being called the deadliest single tornado in the U.S. in 60 years. (Photo by Mario Tama/Getty Images)

Jerry Parker looks through pictures recovered from his destroyed home after a devastating tornado hit Joplin, Missouri May 24, 2011. A monster tornado killed at least 118 people in Joplin, when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

JOPLIN, MO - MAY 24: Christal Comstock sits outside her family home which was destroyed when a massive tornado passed through the town killing at least 116 people May 24, 2011 in Joplin, Missouri. The tornado that ripped through the town of about 50,000 people May 22, is being called the deadliest single tornado in the U.S. in 60 years. (Photo by Mario Tama/Getty Images)

Kyle and Alicia Gordon cry and embrace in their son's room after losing their home to a devastating tornado that hit Joplin, Missouri May 24, 2011. A monster tornado killed at least 116 people in Joplin, when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

The path of a powerful tornado is seen in Joplin, Mo. Tuesday, May 24, 2011. A tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 116 people. (AP Photo/Charlie Riedel)

JOPLIN, MO - MAY 24: Maddie Meek, 9, (L) and her mother Dina Meek salvage what they can from her sister-in-law's home after it was destroyed when massive tornado passed through the town killing at least 116 people on May 24, 2011 in Joplin, Missouri. Authorities were prepared to find more bodies in the town of 50,000 people. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 24: Ernie Darby salvages what he can from his house after it was destroyed when a massive tornado passed through the town on May 24, 2011 in Joplin, Missouri. 116 people are known to have been killed and authorities expect the death toll to climb in the town of 50,000 people. Rescue workers are searching for survivors as the threat of further storms still looms. (Photo by Joe Raedle/Getty Images)

Members of Missouri Task Force One search-and-rescue team work at a tornado-damaged Home Depot store Tuesday, May 24, 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)

A destroyed apartment complex is seen in an aerial view over Joplin, Mo. Tuesday, May 24, 2011. A tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 116 people. (AP Photo/Charlie Riedel)

Volunteers look for survivors in the rubble of a home after a devastating tornado hit Joplin, Missouri May 24, 2011. A monster tornado killed at least 116 people in Joplin, when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

epa02749800 Water spurts from a broken water line in a destroyed home as Lindsay Grundy (L) and Dana Moritz (R) search for their grandmother's belongings, two days after a killer tornado ravaged neighborhoods in Joplin, Missouri, USA, 24 May 2011. 117 people are confirmed dead and over 1,000 people are reportedly injured in the deadliest single tornado since 1953 that struck Joplin 22 May 2011. According to the National Weather Service the tornado has been classified as an FE4 with maximum winds of 198 miles per hour (319 KPH). EPA/TANNEN MAURY

epa02749777 David Turner removes a file cabinet from the destroyed home of his sister two days after a tornado ravaged neighborhoods in Joplin, Missouri, USA, 24 May 2011. The number will help insurance adjusters locate the property. 117 people are confirmed dead and over 1,000 people are reportedly injured in the deadliest single tornado since 1953 that struck Joplin on 22 May 2011. According to the National Weather Service, the tornado has been classified as an FE4 with maximum winds of 198 miles per hour (319 KPH). EPA/TANNEN MAURY

An apartment complex destroyed by a powerful tornado is seen in an aerial view over Joplin, Mo. Tuesday, May 24, 2011. A tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 116 people. (AP Photo/Charlie Riedel)

A vehicle sits amid the debris of a cell phone tower that collapsed onto an apartment building on the east side of Joplin, Mo., Tuesday, May 24, 2011. At least 116 people were killed and hundreds more injured when a tornado cut a destructive path through Joplin on Sunday evening. (AP Photo/Mark Schiefelbein)

Greg Beeching, left, of Carl Junction, Mo., and his son Brian Beeching of Joplin, Mo., move a washer and dryer out of a relative's damaged apartment in Joplin, Tuesday, May 24, 2011. At least 116 people were killed and hundreds more injured when a tornado cut a destructive path through Joplin on Sunday evening. (AP Photo/Mark Schiefelbein)

The path of a powerful tornado is seen in Joplin, Mo., Tuesday, May 24, 2011. A tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 116 people. (AP Photo/Charlie Riedel)

Alicia Gordon salvages items from her home that was destroyed by a devastating tornado that hit Joplin, Missouri May 24, 2011. A monster tornado killed at least 116 people in Joplin, when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

JOPLIN, MO - MAY 24: Debris from destroyed homes are seen after a massive tornado passed through the town on May 24, 2011 in Joplin, Missouri. 116 people are known to have been killed and authorities expect the death toll to climb in the town of 50,000 people. Rescue workers are searching for survivors as the threat of further storms still looms. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 24: Ernie Darby hugs his son Davis Darby as they salvage what they can from their house after it was destroyed when a massive tornado passed through the town on May 24, 2011 in Joplin, Missouri. 116 people are known to have been killed and authorities expect the death toll to climb in the town of 50,000 people. Rescue workers are searching for survivors as the threat of further storms still looms. (Photo by Joe Raedle/Getty Images)

JOPLIN, MO - MAY 23: Janet Martin attempts to salvage medication and mementos from her brother's home before a second storm moves in, on May 23, 2011 in Joplin, Missouri. \"Twenty minutes before the storm, he left to go to church. He would have been in that basement if he hadn't gone,\" Martin said. A powerful tornado ripped through the densely populated town of Joplin yesterday killing at least 89 people. (Photo by Julie Denesha/Getty Images) *** BESTPIX ***

A couple walk near a building destroyed by a tornado that hit Joplin, Missouri, May 23, 2011. A monster tornado killed at least 116 people in Joplin when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Ed Zurga (UNITED STATES - Tags: ENVIRONMENT DISASTER)

Volunteers clear rubble as they look for survivors after a devastating tornado hit Joplin, Missouri, May 23, 2011. A monster tornado killed at least 116 people in Joplin, Missouri when it tore through the heart of the small Midwestern city, ripping the roof off a hospital and destroying thousands of homes and businesses. REUTERS/Eric Thayer (UNITED STATES - Tags: DISASTER ENVIRONMENT)

epa02748005 A law officer sits in his vehicle facing what is left of the high school after a large tornado hit the town of Joplin, Missouri, USA, 23 May 2011. The tornado caused damage to a large portion of the town and the city's hospital and school. EPA/LARRY W SMITH

Kathleen Kelsey, a canine rescue specialist with the Missouri Task Force One search-and-rescue team, guides a live-find dog named ChicoDog through the wreckage of a public housing complex in Joplin, Mo., Monday, May 23, 2011. A destructive tornado swept through Joplin on Sunday evening, killing at least 116 and injuring hundreds more. (AP Photo/Mark Schiefelbein)

epa02747999 People stand and look at what is left of houses after a large tornado hit the town of Joplin, Missouri, USA, 23 May 2011. The tornado caused damage to a large portion of the town and the city's hospital and school. EPA/LARRY W SMITH

A grain elevator is among the tornado damage as clean up begins in Reading, Kan., Monday, May 23, 2011. (AP Photo/Orlin Wagner)

Rescue workers in lime-green jackets search for bodies and survivors inside St. John's hospital in Joplin, Mo. Monday, May 23, 2011. The hospital was damaged by a tornado that destroyed nearly 30 percent of the city on Sunday afternoon. (AP Photo/Tulsa World, Adam Wisneski)

A man salvages a guitar from a severely damaged home in Joplin, Mo., Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses and killing at least 89 people. (AP Photo/Charlie Riedel)

Maggie Kelley and her husband, Trey Adams hug their dog, Saint, after finding him amid the rubble of her home in Joplin, Mo. Monday, May 23, 2011. The two are Hurricane Katrina evacuees. Joplin was leveled by a tornado that destroyed nearly 30 percent of the town on Sunday afternoon. The twister cut a six-mile path through the city. (AP Photo/Tulsa World, Adam Wisneski)

Ted Grabenauer sleeps on his front porch the morning after a tornado ripped off the roof of his home when it hit Joplin, Missouri May 23, 2011. At least 89 people have died in a monster tornado that left a path of destruction nearly a mile (1 km) wide through the heart of Joplin, Missouri, and directly hit the small Midwestern city's main hospital, local officials said on Monday. REUTERS/Mike Stone (UNITED STATES - Tags: ENVIRONMENT DISASTER)

A pool of blood is seen on the floor of a business establishment which was wiped out by a tornado in Joplin, Missouri May 23, 2011. At least 89 people have died in a monster tornado that left a path of destruction nearly a mile (1 km) wide through the heart of Joplin, Missouri, and directly hit the small Midwestern city's main hospital, local officials said on Monday. REUTERS/Mike Stone (UNITED STATES - Tags: ENVIRONMENT DISASTER)

A hand-written note to rescue workers is seen on a house that was damaged by a tornado that destroyed nearly 30 percent of Joplin, Mo., on Sunday afternoon. The twister cut a six-mile path through the city. (AP Photo/Tulsa World, Adam Wisneski)

Mark Langford sorts through the debris looking for personal belongings after his home was destroyed when a tornado hit Joplin, Missouri May 23, 2011. At least 89 people have died in a monster tornado that left a path of destruction nearly a mile (1 km) wide through the heart of Joplin, Missouri, and directly hit the small Midwestern city's main hospital, local officials said on Monday. REUTERS/Mike Stone (UNITED STATES - Tags: ENVIRONMENT DISASTER)

A shelf cloud containing a thunderstorm approaches a tornado-ravaged neighborhood in Joplin, Mo., Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital, hundreds of homes and businesses and killing at least 89 people. (AP Photo/Charlie Riedel)

Blocks of homes lie in total destruction after a tornado hit Joplin, Missouri May 23, 2011. At least 89 people have died in Joplin, Missouri, and the toll is expected to climb as one of the deadliest tornadoes in state history roared through the small Midwestern city on Sunday, local officials said on Monday. REUTERS/Mike Stone (UNITED STATES - Tags: ENVIRONMENT DISASTER IMAGES OF THE DAY)

Donald and Helen Capps of Joplin, Mo., sit in a temporary Red Cross shelter at the Robert Ellis Young Gymnasium at Missouri Southern State University in Joplin, Mo., Monday, May 23, 2011. The Capps lost their home after a destructive tornado moved through Joplin on Sunday evening, killing at least 89 people and injuring hundreds more. (AP Photo/Mark Schiefelbein)

Emergency workers wait for a medical team after finding a body in a tornado ravaged car in Joplin, Mo., Monday, May 22, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)

Utility workers clear downed power lines near the St. John's hospital early May 23, 2011, after a devastating tornado hit Joplin, Missouri. Tornadoes tore through parts of the U.S. Midwest on Sunday, killing at least 30 people in the Missouri town of Joplin and causing one death in Minneapolis as well as causing extensive property damage. REUTERS/Mike Stone (UNITED STATES - Tags: DISASTER ENVIRONMENT IMAGES OF THE DAY)

An emergency worker searches a Walmart store that was severely damaged by a tornado in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)

Emergency vehicles line up along northbound Rangeline Road in Joplin, Mo. after a tornado swept through the city in Joplin, Mo. on Sunday evening, May 22, 2011. (AP Photo/The Joplin Globe, Roger Nomer)

Residents of Joplin, Mo, help a woman who survived in her basement after a tornado hit the city on Sunday, May 22, 2011. The tornado tore a path a mile wide and four miles long destroying homes and businesses. (AP Photo/Mike Gullett)

A destroyed helicopter lies on its side in the parking lot of the Joplin Regional Medical Center in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging the hospital and hundreds of homes and businesses. (AP Photo/Mark Schiefelbein)

William Jackson, left, and Ashley Martin, volunteer firefighters from Oklahoma, survey the wreckage of destroyed homes in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging a hospital and hundreds of homes and businesses. (AP Photo/Mark Schiefelbein)

Two rescuers try to pull free a woman from a destroyed building in Joplin, Mo. after a tornado struck the city on Sunday evening, May 22, 2011. (AP Photo/The Joplin Globe, Roger Nomer)

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 Photo/Mike Gullett)

Rescuers and neighbors look through the the wreckage of destroyed homes on a hillside in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging a hospital and hundreds of homes and businesses. (AP Photo/Mark Schiefelbein)

A triage team treats wounded people at a triage station set up at Twenty-sixth and Main Streets in Joplin, Mo. after a tornado swept through the city on Sunday evening, May 22, 2011. (AP Photo/The Joplin Globe, Mari Taylor)

Emergency personnel walk through a neighborhood severely damaged by a tornado near the Joplin Regional Medical Center in Joplin, Mo., Sunday, May 22, 2011. A large tornado moved through much of the city, damaging a hospital and hundreds of homes and businesses. (AP Photo/Mark Schiefelbein)

A pickup truck with what looked like two rescue workers and two injured people weaves in and out of traffic to get to Freeman Hospital West in Joplin, Mo. after the town was hit by a tornado on Sunday, May 22, 2011. (AP Photo/The Wichita Eagle, Jaime Green)

A tractor trailer is tipped over on Interstate 44 near Joplin, Mo., after the town was hit by a tornado on Sunday, May 22, 2011. (AP Photo/The Wichita Eagle, Jaime Green)

A woman talks on the phone from a roofless garage after a tornado after a tornado struck northern Minneapolis Sunday, May 22, 2011, causing extensive property damage, killing at least one person and injuring at least 18 others. (AP Photo/Craig Lassig)

Lucas Wickander, 13, shows off the skinned knuckles he received after diving under a porch to escape a tornado that struck northern Minneapolis Sunday, May 22, 2011, causing extensive property damage, killing at least one person and injuring at least 18 others. (AP Photo/Craig Lassig)

This photo taken Saturday, May 21, 2011 from a view looking east from S.W. 37th and Wanamaker shows funnel clouds above Topeka, Kan. at around 6:20 p.m. The National Weather Service issued a series of tornado warnings as the storm system moved throughout the region late Saturday afternoon and headed toward Missouri Saturday evening. No major damage or injuries were reported. (AP Photo/The Capital-Journal, Phil Anderson)

Damage to the Reading, Kan. post office caused by a tornado is shown Sunday, May 22, 2011. A tornado swept through the small eastern Kansas town Saturday, killing one person and destroying at least 20 homes, as severe thunderstorms pelted the region with hail that some residents described as the size of baseballs, authorities said Sunday. (AP Photo/The Capital-Journal, Anthony S. Bush)

Matt Railsback, of Miller, Kan., looks around at the damage caused by a tornado Saturday night in Reading, Kan. on Sunday, May 22, 2011. Miller was trapped in the storm shelter with his girlfriend in the blue house in the background. His truck was rolled end over end and came to rest at the fire station across the street. (AP Photo/The Capital-Journal, Anthony S. Bush)

Cleanup begins at a tornado-damaged home in Reading, Kan., Sunday, May 22, 2011. Powerful storms rolled across parts of Kansas late Saturday, spawning funnel clouds and hail that ripped limbs off of trees and shattered windows. (AP Photo/Orlin Wagner)

Lightning from a severe thunderstorm flashes in the distance beyond a crucifix in a cemetery near Easton, Kan. Saturday, May 21, 2011. (AP Photo/Charlie Riedel)