Active AlertsCreston, IA

What: Visibility one quarter mile or less in dense fog.
Where: Much of central and western Iowa, including all of I-35 and I-80 from Des Moines to Council Bluffs.
When: Until 9 AM CST this morning.
Impacts: Low visibility could make driving conditions hazardous.

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