Columbia Public Works sent a 22-person plow crew on the roads at 7 p.m. Saturday to continue treating roads.
Precipitation changed from a light drizzle to a wintry mix in the morning and changed to snow in the afternoon. Snow accumulations were about 1.5 inches as of 6 p.m.
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Road conditions also deteriorated throughout the day, with most mid-Missouri roads being completely covered.
Jefferson City Public Works spokesman Britt Smith said crews will continue to treat roads overnight, but they do not expect to hit pavement.
"We have all our crews going at this time," he said. "With the drop in temp, chemicals have lost a lot of their effectiveness. As a result we do not expect to get bare pavement tonight."
ABC 17 Stormtrack Meteorologist Luke Victor gave an update on timing of that snow in the area around 3 p.m.
The Missouri State Highway Patrol tweeted crash totals for the weekend's weather around 2 p.m.
Troop F responded to about 65 calls for service, 15 crashes and 20 stranded motorists.
A winter storm that began moving through the area Friday night dumped several inches of rain before changing over to freezing drizzle early Saturday. By Saturday afternoon snow was falling across most of Mid-Missouri.
Heavy rain overnight caused flooding that closed Route CC westbound near Centralia and Route O near Fayette.
Boone County emergency dispatchers reported flooding had closed Route E at Twin Bridges, as well.
Several flights were also canceled at Columbia Regional Airport.
Columbia Public Works reported that a new 22-person crew started work at 7 a.m. Saturday. Overnight crews were able to pretreat roads but the agency cautioned people not to drive and to watch for slick sidewalks.
The ABC 17 News Stormtrack Weather team has declared a Weather Alert Day because of the continued winter weather threat. Freezing drizzle had largely left the area by Saturday afternoon and had changed to snow, continuing to cause travel issues.
The National Weather Service has placed mid-Missouri counties under winter weather warnings and advisories. Flood warnings also remain in place in several areas after heavy rain coated the region Friday into Saturday.
Radar estimates show some areas picked up 3 to 5 inches of rain, including nearly 2 inches in Columbia and 3 inches in Jefferson City.
Check back frequently for updates on weather and road conditions and watch ABC 17 News for extended updates.