The National Weather Service has issued a Dense Fog Advisory in effect for Piatt, Christian, Champaign, Moultrie, Douglas, Coles, Edgar, Shelby, Cumberland, Clark, Effingham, Jasper, and Crawford counties in Illinois in effect until 5pm this afternoon.
Visibilities will drop to less than one quarter of a mile early this afternoon. Visibilities will tend to improve from South to North late this afternoon as a warm front passes through the area.
Low visibility and rapid changes in visibility will cause hazardous driving conditions.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.