Patchy Dense Fog overnight across northeast Illinois/northwest Indiana

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.
Fog causes delays on highway and in air

Update 7AM CDT…

A dense Fog Advisory continues in effect until 9AM CDT for a good portion of northeast Illinois away from the city until 9AM. At 7AM CDT conditions were generally on an improving trend with lowest area airport visibility reported at  1/8 mile at Rockford and a quarter-mile at Morris, Peru-Ottawa, Freeport and Aurora.

__________________________________________________________________________________________________

With temperature/dew-point spread narrowing a degree or less at most airport locations, wet soils and clearing skies, visibility will drop to less than a half mile – approaching zero in spots overnight, causing difficult/dangerous driving conditions. The early morning commute looks to be very slow in many areas, and individuals should make appropriate plans. Conditions should improve significantly by mid-morning Tuesday.

Below is the map of current visibility in tenths of a mile at area airport locations…