Active AlertsStorm Lake, IA

What: Visibility one quarter mile or less in dense fog.
Where: Portions of northwest and west central Iowa and southwest Minnesota.
When: Until noon CST today.
Impacts: Low visibility could make driving conditions hazardous. Watch for slick spots on untreated roads where temperatures are below freezing.

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