If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST SATURDAY...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of north central, northwest, and west central
Illinois, east central, northeast, and southeast Iowa, and
northeast Missouri.
* WHEN...Until 10 AM CST Saturday.
* IMPACTS...Low visibility could make driving conditions hazardous.