St. Louis, MO  (KTRS)  A winter weather advisory is in effect for the St. Louis area.

The National Weather Service has issued the advisory from 8 p.m. Tuesday through noon. Wednesday. The forecast calls for light freezing drizzle, which could cause slick roads.

Motorists are advised to exercise caution, especially on bridges, ramps, and overpasses. For road conditions in Missouri, call 1-888-275-6636. In Illinois, call 1-800-453-4368.