Special Weather Statement issued December 9 at 2:40AM CST by NWS Twin Cities/Chanhassen MN

Surface observations and MNDOT road cameras reveal dense fog
across east central Minnesota. Satellite illustrates the eastward
movement of low stratus/areas of dense fog, thus it appears
likely that visibility will deteriorate for locations to the east
across western Wisconsin in the coming hours. Visibility may fall
below 1/2 mile at times. Drivers are encouraged to slow down, use
low beams, and leave plenty of distance between the vehicles.
Additionally, a few slick spots appear possible on area roadways
due to reports of freezing fog. Visibility will improve as winds
increase after daybreak.