Alertes en vigueurSilvis, IL

What: Visibility one quarter mile or less in dense fog.
Where: Portions of northwest Illinois and east central and northeast Iowa.
When: Until noon CST Sunday.
Impacts: Low visibility could make driving conditions hazardous.
Additional Details: Brief improvements are expected this afternoon, before conditions deteriorate once again this evening and overnight.

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