Weather

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President Barack Obama, left, reaches out to residents while viewing damage from the tornado that devastated Joplin, Mo., Sunday, May 29, 2011. (AP Photo/J. Scott Applewhite)

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In this May 26, 2011 photo, Randy Matthews, background, carries a piece of tornado debris in Piedmont, Okla., past the door of the tornado shelter where his mother, Betty Matthews, not pictured, stayed in safely during Tuesday's deadly tornado. The old-fashioned storm shelters that once dotted yards across the Plains have become relics of the past as home buyers invest in other features or try to save money. (AP Photo/Sue Ogrocki)

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President Obama arrives at the Joplin Regional Airport in Joplin, Mo., on Sunday, May 29, 2011, to view damage caused by a devastating tornado that hit the area last Sunday and to take part in a memorial service for the victims. (AP/Mike Gullett)

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Lantz Hare, 16, has been missing since a deadly tornado hit Joplin, Mo., on Sunday, May 22, 2011. (AP Photo/Mike Hare)

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Storm clouds pass over the devastated Greenbriar Nursing Home in Joplin, Mo. on Wednesday, May 25, 2011. Eleven residents of the facility died when 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)

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Motorists drive through floodwaters following a sudden downpour that inundated low-lying areas in Manila, Philippines, on May 24, 2011. (Associated Press)

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"If the recent disasters that have affected the South and Midwest aren't emergencies, then what are?" asked Rep. Robert B. Aderholt. (Associated Press)

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The tornado damage was "like taking a mower through tall grass," state Sen. Ron Richard said of the destruction in Joplin, Mo. The storm tore across the city Sunday, killing at least 116 people. (Associated Press)

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An aerial photograph taken on Tuesday, May 24, 2011, shows a neighborhood in Joplin, Mo., that was destroyed by a powerful tornado on Sunday. (AP Photo/Charlie Riedel)

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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)

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A cross stands atop a church that was severely damaged by a tornado in Joplin, Mo., as a severe storm passes overhead on 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)

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Emergency workers wait for a medical team after finding a body in a tornado-ravaged car in Joplin, Mo., on Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)

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Residents begin digging through the rubble of their home after it was destroyed by a tornado that 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)

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Storm clouds dwarf a farm near Lamar, Mo., as the sun sets on Sunday, May 22, 2011. A storm earlier produced a large tornado that moved through much of Joplin, Mo., damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)

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Emergency personnel assess the damage to the Academy Sports building in Joplin, Mo., following the tornado that struck the city on Sunday evening, May 22, 2011. (AP Photo/The Joplin Globe, Roger Nomer)

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An emergency worker searches a Walmart store that was severely damaged by a tornado in Joplin, Mo., on Sunday, May 22, 2011. (AP Photo/Charlie Riedel)

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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. (AP Photo/Mike Gullett)

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Don Atteberry, 89, surveys damage at his home in Joplin, Mo., on Monday, May 23, 2011, after it was severely damaged by a tornado on Sunday. The twister killed at least 89 people. (AP Photo/Charlie Riedel)

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A body is seen in a tornado-ravaged car while emergency workers wait for a medical team to arrive in Joplin, Mo., on Monday, May 23, 2011. A large tornado moved through much of the city Sunday, damaging a hospital and hundreds of homes and businesses. (AP Photo/Charlie Riedel)

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