National Weather Service

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A person shovels snow Wednesday, Feb. 5, 2014, in Topeka, Kan. The National Weather Service said snowfall totals included 9 inches in Wichita and more than a foot in Topeka and surrounding cities. (AP Photo/Topeka Capital-Journal, Thad Allton)

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FILE - In a Sunday, Jan. 26, 2014 file photo, the westbound Interstate 696 is closed at Groesbeck Highway due to numerous accidents, on I-696 in Roseville, Mich. The National Weather Service says up to seven inches of snow is expected to cover the Detroit area Saturday, Feb. 1, 2014, a day after the region ended January with 39.1 inches of snow -- its snowiest month ever.(AP Photo/Detroit News, Robin Buckson, File) DETROIT FREE PRESS OUT; HUFFINGTON POST OUT.

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On a day with single digit temperatures and a National Weather Service wind chill advisory, Henderson, Ky mail carrier Kevin Wilke prefers to make his rounds Thursday Jan. 23, 2014, in shorts. He wears a coat, ear muffs, gloves and boots but says he is more comfortable in shorts. (AP Photo/The Gleaner, Mike Lawrence)

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A motorist stands outside his car after the vehicle went into a ditch on Fisher Avenue/Polk County Highway 11, Wednesday, Jan. 22, 2014, in Crookston, Minn. The National Weather Service issued a blizzard warning for the region and west central Minnesota. (AP Photo/The Daily Times, Mike Christopherson)

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A motorist stands outside his car, at left, after the vehicle went into a ditch on Fisher Avenue/Polk County Highway 11, Wednesday, Jan. 22, 2014, in Crookston, Minn. The National Weather Service issued a blizzard warning for the region and west central Minnesota. (AP Photo/The Daily Times, Mike Christopherson)

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A car travels in the snow on Tuesday, Jan. 21, 2014, in Annville Township, Pa. The National Weather Service predicts the storm could drop 8 to 12 inches of snow followed by bitterly cold temperatures. (AP Photo/Lebanon Daily News, Jeremy Long) THE PATRIOT-NEWS OUT

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Dan Schramm, a senior at Lebanon Valley College, uses a backpack blower to clear snow off the steps of the humanities building on Tuesday, Jan. 21, 2014, in Annville Township, Pa. The National Weather Service predicts the storm could drop 8 to 12 inches of snow followed by bitterly cold temperatures. (AP Photo/Lebanon Daily News, Jeremy Long) THE PATRIOT-NEWS OUT

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Eric Weiser, 5, of Lebanon, Pa., sleds down the hill on Tuesday, Jan. 21, 2014, in Lebanon, Pa. The National Weather Service predicts the storm could drop 8 to 12 inches of snow followed by bitterly cold temperatures. (AP Photo/Lebanon Daily News, Jeremy Long) THE PATRIOT-NEWS OUT

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Sharon Schaeffer, of Lebanon, Pa., walks through Fisher's Veterans Park on her way home on Tuesday, Jan. 21, 2014, in Lebanon, Pa. The National Weather Service predicts the storm could drop 8 to 12 inches of snow followed by bitterly cold temperatures. (AP Photo/Lebanon Daily News, Jeremy Long) THE PATRIOT-NEWS OUT

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Dyloan Witzig, right, and his brother Zach, catch their breath after wrestling on the hill behind York Suburban High School on Tuesday, Jan. 21, 2014, in York, Pa. The National Weather Service predicts the storm could drop 8 to 12 inches of snow followed by bitterly cold temperatures. (AP Photo/York Daily Record, Jason Plotkin) YORK DISPATCH OUT

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A person walks a dog through snowy Central Park in the Manhattan borough of New York, Tuesday, Jan. 21, 2014. The National Weather Service said the storm could bring 10 to 14 inches of snow to Philadelphia and southern New England and up to a foot in New York City, to be followed by bitter cold. An arctic air mass will plunge the eastern half of the United States into a deep freeze, with wind chills as low as 40 degrees below zero, the weather service said. (AP Photo/Seth Wenig)

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A pedestrian tries to keep warm while talking on his phone in the Manhattan borough of New York, Tuesday, Jan. 21, 2014. The National Weather Service said the storm could bring 10 to 14 inches of snow to Philadelphia and southern New England and up to a foot in New York City, to be followed by bitter cold. An arctic air mass will plunge the eastern half of the United States into a deep freeze, with wind chills as low as 40 degrees below zero, the weather service said. (AP Photo/Seth Wenig)

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Pedestrians make their way through the snow in the Manhattan borough of New York, Tuesday, Jan. 21, 2014. The National Weather Service said the storm could bring 10 to 14 inches of snow to Philadelphia and southern New England and up to a foot in New York City, to be followed by bitter cold. An arctic air mass will plunge the eastern half of the United States into a deep freeze, with wind chills as low as 40 degrees below zero, the weather service said. (AP Photo/Seth Wenig)