Heavy snow is spreading across a large swath of the Midwest, where travel conditions deteriorated.
People walk along Clinton Street as snow falls during a winter storm warning, in Iowa City, Iowa.
A person walks past the Old Capitol Building as snow falls during a winter storm warning in Iowa City, Iowa.
A vehicle heads to towards East Pierce Street on Stutsman Street in Council Bluffs, Iowa, in the snow.
A semi accident holds up traffic on Interstate 80 near Des Moines, Iowa after a winter storm dumped several inches of snow across central Iowa.