If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

DENSE FOG ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 10 AM CST SATURDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northeast Iowa, southeast Minnesota, and central, north central, southwest, and west central Wisconsin. * WHEN...From 5 PM this afternoon to 10 AM CST Saturday. * IMPACTS...Low visibility could make driving conditions hazardous. Some slick spots could develop in shaded areas and snow covered roads where surface temperatures are around freezing. Continue to use caution if traveling.