Active AlertsBrookings, SD

What: Visibility one quarter mile or less in dense fog.
Where: Portions of west central Iowa, northeast Nebraska, and east central and southeast South Dakota.
When: Until 9 AM CST Friday.
Impacts: Low visibility could make driving conditions hazardous.
Additional Details: Patchy slick spots are possible along and north of I-90 as temperatures fall below freezing.

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