Kansas transportation officials have closed almost 200 miles of Interstate 70 in western and central Kansas because of a winter storm, and they're urging people to stay home. The Department of Transportation reported at about 3 p.m. Thursday that I-70 was closed from its junction with I-135 in Salina all the way west to Colby. KDOT also closed a 50-mile section of U.S. 54 in southwest Kansas, from the Pratt-Kiowa county border west to Minneola in Clark County. In addition, a stretch of U.S. 400 was closed between Greensburg and Dodge City. Heavy snow has fallen across nearly all of Kansas. The Kansas Turnpike Authority also encouraged people to stay off the turnpike on the entire route from Oklahoma to Kansas City.