Weather

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Francis Gonzalez stands with her three children as she surveys the damage caused by a tornado to her convenience store business on Monday, April 28, 2014, in Tupelo, Miss. Gonzalez and her kids ran into a cooler in the back of a convenience store, which also houses a Mexican restaurant, as a tornado approached Monday. (AP Photo/Adrian Sainz).

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Raella Faulkner, at left, and Bobby McElroy survey what's left of their home Monday, April 28, 2014 after a tornado struck the town of Vilonia, Ark. late Sunday. The couple rode out the storm safely in a nearby storm shelter. Vilonia was hit hard Sunday after a tornado system ripped through several states in the central U.S. and left more than a dozen dead in a violent start to this year's storm season, officials said. (AP Photo/Karen E. Segrave)

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Residents of Four Corners look at the damage left by a tornado that hit their small community about 20 miles from Louisville, Monday, April 28, 2014. Tornados flattened homes and businesses, flipped trucks over on highways and injured numerous people in Mississippi and Alabama on Monday as a massive, dangerous storm system passed over several states in the South, threatening additional twisters as well as severe thunderstorms, damaging hail and flash floods. (AP Photo/Rogelio V. Solis)

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A travel trailer sits inn the rubble of a house in Mayflower, Ark., Monday, April 28, 2014, after a tornado struck the town late Sunday. A storm system ripped through several states in the central U.S. and left at least 16 dead in a violent start to this year's storm season, officials said. (AP Photo/Danny Johnston)

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An American flag stands limp in front of a gas station-convenience store that had its roof mangled by a tornado on Monday, April 28, 2014, in Tupelo, Miss. With parts of the U.S. recovering from deadly tornadoes, more heavy storms are making their way across the South. (AP Photo/Adrian Sainz).

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Dust and debris fly as workers flip a fallen wall as they search through homes destroyed by a tornado, Monday, April 28, 2014, in Vilonia, Ark. Arkansas Gov. Mike Beebe has asked for a Major Disaster Declaration for Faulkner County, which was hit hardest by a deadly tornado that rolled through the state. (AP Photo/Eric Gay

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Arkansas Gov. Mike Beebe, third from right, surveys the tornado damage along Aspen Creek Drive in the Parkwood neighborhood off Naylor Road in Vilonia, Ark. after a tornado struck the town. Vilonia was hit hard Sunday after a tornado system ripped through several states in the central U.S. and left more than a dozen dead in a violent start to this year's storm season, officials said. (AP Photo/Karen E. Segrave)

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Workers flip a fallen wall as they search through homes destroyed by a tornado, Monday, April 28, 2014, in Vilonia, Ark. Arkansas Gov. Mike Beebe has asked for a Major Disaster Declaration for Faulkner County, which was hit hardest by a deadly tornado that rolled through the state. (AP Photo/Eric Gay)