Lawrence public works crews are treating roads ahead of tonight’s expected wintry mix of sleet and snow.

“There shouldn’t be a lot of accumulation but there is the potential for slick and icy conditions especially at night and into the morning,” said Megan Gilliland, the city’s communications manager. “Leave a little extra time and just be aware of road conditions and realize that while the pavement may only look wet, its temperatures can drop below freezing.”

The National Weather Service in Topeka issued a winter weather advisory for Douglas County from 9 p.m. until 3 p.m. Friday. Areas of light rain will transition to light freezing rain before freezing drizzle and sleet tonight change to light snow and sleet after 3 a.m.

The Weather Service said the wintry mix may cause low visibility for drivers at times and make roadways, especially bridges and overpasses, slick.

Gilliland said that the city began pre-treating bridges, hills and intersections today with a salt and brine mixture and that crews would also be out around midnight to check for slick areas.

Gilliland said the city is not expecting any additional accumulation after Friday morning. The city will update a link on its website with the latest snow and ice operations updates.