A city worker clears sidewalks and streets after a weekend spring snow storm moved through the Midwest Monday, March 25, 2013, in Springfield, Ill. The spring snowstorm that swept across central Illinois over the weekend buried Springfield with a record 1

A shopper carefully navigates a slippery street after a weekend spring snow storm moved through the Midwest Monday, March 25, 2013, in Springfield, Ill. | AP Photo~Seth Perlman

Lanscapeing becomes art at the Abraham Lincoln Capital Airport after a spring snowstorm moved through the Midwest Monday, March 25, 2013, in Springfield, Ill. The snowstorm that swept across central Illinois over the weekend buried Springfield with a reco

Artwork featuring Abraham Lincoln outside the Illinois State Museum Monday, March 25, 2013, in Springfield, Ill., is covered with snow after a snowstorm moved through the Midwest. The spring snowstorm that swept across central Illinois over the weekend b

A mother and her young child brave the elements to enjoy some sledding after a weekend spring snowstorm moved through the Midwest, Monday, March 25, 2013, in Springfield, Ill. The spring snowstorm that swept across central Illinois over the weekend buried Springfield with a record 18 1/2 inches, helped by waves of thunder that cranked up the snowfall rate to about 2 inches an hour at times. Schools, and even two universities, in the area canceled classes for Monday, and authorities in the state capital declared a snow emergency. (AP Photo/Seth Perlman)

A homeowner clears the more than seven inches of snow from his sidewalk in Carmel, Ind., Monday, March 25, 2013. | AP Photo~Michael Conroy

Cameron Willson, 10, has a faceful of snow after being hit with a snowball Monday morning March 25, 2013 during a neighborhood snowball fight in Fort Wayne, Indiana. | AP Photo~The Journal Gazette, Swikar Patel

Carol Evans walks her dogs after a spring snowstorm moved through the Midwest Monday, March 25, 2013, in Springfield, Ill. The spring snowstorm that swept across central Illinois over the weekend buried Springfield with a record 18 1/2 inches of snow. |

Dennis Catron walks his three dogs along Darby Lane through the Greenbriar neighborhood on Indianapolis' far Northside on Monday, March 25, 2013 after more than 7 inches of snow fell overnight.| (AP Photo~The Star, Charlie Nye

Gary Swing clears the walkway in front of 1st Source Center along Main Street Monday morning March 25, 2013 in Fort Wayne, Indiana. | AP Photo~The Journal Gazette, Swikar Patel

Jonathan Hines digs his car out of the snow on State Street, in Lafayette, Ind., on Monday, March 25, 2013, after a record-setting storm dumped more than 7 inches of snow in the area, bringing plows out in force and keeping police busy chasing a string of

Corky Shanklin, left, and Cortes Poole, right, clear snow off cars at the Isringhausen auto dealership after a weekend spring snowstorm moved through the Midwest, Monday, March 25, 2013, in Springfield, Ill. | AP Photo~Seth Perlman

JC Hobbs directs his wife Sarah as they help to pull a van and U-Haul up a hill outside Calhan, Colo. as a storm continued to bring bad weather to the Colorado Springs area Saturday, March 23, 2013. Transportation officials said Interstate 70 was closed from Denver to Colby, Kan., on Saturday. The National Weather Service said the Denver area could see up to 7 inches of snow Saturday. (AP Photo/The Colorado Springs Gazette, Michael Ciaglo) MAGS OUT