DES MOINES, Iowa -- The first widespread snowstorm of the season is crawling across the Midwest.
The storm has dumped a foot of snow in parts of Iowa and more than 19 inches in Wisconsin's state capital.
Whiteout conditions are stranding holiday travelers and sending drivers sliding over slick roads.
Iowa state police say drivers on Interstate 35 got into a 25-vehicle chain collision about 60 miles north of Des Moines Thursday. Two people were killed and seven injured.
The storm has made travel difficult from Kansas to Wisconsin, forcing road closures, including a 120-mile stretch of Interstate 35. Sections of Interstate 80 in Nebraska and Interstate 29 in Missouri that had been closed were reopened Thursday afternoon. Iowa and Wisconsin have activated National Guard troops to help rescue stranded drivers.
Airlines have delayed and canceled hundreds of flights out of Chicago's two major airports and are monitoring the storm throughout the night to determine if more cancellations will be necessary on Friday.