The first snowfall of the season is sweeping into the Midwest, and it will produce hazardous travel conditions for millions.
"Snow will spread east across northern Nebraska and southern South Dakota Friday before reaching Iowa and Illinois Friday night," AccuWeather Meteorologist Becky Elliott said.
"Snowfall amounts will quickly reach 6-10 inches across central Iowa where the heaviest band of snow sets up. Snow will push east tonight, including into the Chicago Metro and surrounding areas," she said.
Snow will accumulate on roadways making for dangerous travel. Visibility may be greatly reduced in some of the heaviest pockets of snowfall, including portions of interstates 80 and 90. Motorists should use caution.
UPDATES: (All times are listed in CST)
12:25 p.m. CST Friday: Snow is falling in Mason City, Iowa:
Snow is falling pretty steadily now. Slow down and take your time driving, conditions could worsen quickly. 2758 pic.twitter.com/znC5Mp0taZ— Mason City Police (@MasonCityPD) November 20, 2015
12:06 p.m. CST Friday: Eight inches of snow was reported in Tripp, South Dakota, roughly 80 miles east of Sioux Falls, according to an NWS trained spotter.
12:03 p.m. CST Friday: Snow was quick to accumulate in Sioux Falls, South Dakota. A twitter user in the area recorded the difference from 9 a.m. to 11 a.m.
11:29 a.m. CST Friday: Up to 5.5 inches of snow was reported in Marion, South Dakota, according to an NWS observer.
11:15 a.m. CST Friday: Emergency management reports visibility is down to a half mile due to the snow near Milford, Iowa, approximately 100 miles northwest of Fort Dodge.
10:47 a.m. CST Friday: A two-vehicle accident was reported on Interstate 15 near Great Falls, Minnesota, amid snow according to the Minnesota Department of Transportation.
10:28 a.m. CST Friday: Snow is accumulating on roads in Sioux Falls, South Dakota:
Here's a look at 57th & Marion #SDwx pic.twitter.com/ieV6PrVAJm— Brandon Spinner (@wxSpinner89) November 20, 2015
10:18 a.m. CST Friday: Snowplows are clearing roads across northwestern Iowa:
10:11 a.m. CST Friday: Snow is causing difficult travel across southern South Dakota:
Saw several cars off the road along I-29. Roads are very icy and visibility is low. Drive slow. pic.twitter.com/1yB4eihWHY— KSFY News (@ksfynews) November 20, 2015
10:07 a.m. CST Friday: As of 9 a.m. local time, 2.3 inches of snow were reported in Rapid City, South Dakota, according to the National Weather Service.