Weather

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This photo provided by James Bryant shows tornado damage, Sunday, April 27, 2014, in Mayflower, Ark. A powerful storm system rumbled through the central and southern United States on Sunday, spawning several tornadoes, including one in a small northeastern Oklahoma city and another that carved a path of destruction through several northern suburbs of Little Rock, Ark. (AP Photo/Courtesy of James Bryant) MANDATORY CREDIT

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A volunteer joins a first responder as they jog toward other ambulances that are gathering outside the Winston Medical Center in Louisville, Miss., Monday, April 28, 2014 after a tornado hit the small hospital, a nursing home next door and a number of homes and businesses in the east Mississippi community. 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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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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A police officer directs traffic in front of damaged homes on Clayton Avenue in Tupelo, Miss., Tuesday, April 29, 2014. A dangerous storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left tens of thousands in the dark Tuesday. (AP Photo/Thomas Graning)

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Kevin Barnes searches the remains of his home on Clayton Avenue in Tupelo, Miss., Tuesday, April 29, 2014. A dangerous storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left tens of thousands in the dark Tuesday. (AP Photo/Thomas Graning)

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A resident searches the remains of his home on Clayton Avenue in Tupelo, Miss., Tuesday, April 29, 2014. A dangerous storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left tens of thousands in the dark Tuesday. (AP Photo/Thomas Graning)

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Mark Wade searches for personal items after his home was destroyed by Sunday's tornado, Tuesday, April 29, 2014, in Vilonia, Ark. A dangerous storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left tens of thousands in the dark Tuesday morning. (AP Photo/Eric Gay)

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Debris is scattered along with destroyed mobile homes at Billy Barbs mobile home park on Tuesday, April 29, 2014, in Athens, Ala. A dangerous storm system that spawned a chain of deadly tornadoes over three days flattened homes and businesses, forced frightened residents in more than half a dozen states to take cover and left tens of thousands in the dark Tuesday morning. (AP Photo/Butch Dill)

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An 18-wheeler and numerous strips of sheet metal block the southbound lanes of U.S. 49 in Richland, Miss., after a tornado ripped through the area late Monday afternoon, April 28, 2014. According to the truck's driver, he was alerted to the tornado in time to pull to the shoulder, lock his brakes and curl into the floor of his cab before the rig was spun 90 degrees amid a hail-storm of flying debris when the tornado passed. The driver was unhurt. (AP Photo/The Clarion-Ledger, Joe Ellis) NO SALES

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A resident rushes past an SUV that was tossed by a tornado in Four Corners, Miss., 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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Brent Martin walks along Kincannon Street in Tupelo, Miss., Tuesday, April 29, 2014. Martin was surveying damage done by a tornado to other homes in his neighborhood. (AP Photo/Thomas Graning)