Illinois Moderate Dense Fog Advisory | Effective 09/11/2026 04:22

Headline: 
Dense Fog Advisory issued September 11 at 6:22AM CDT until September 11 at 9:00AM CDT by NWS Lincoln IL
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
September 11, 2026 - 4:22am
Expires: 
September 11, 2026 - 7:00am
Description: 
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Knox County. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Instruction: 
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Area Description: 
Knox
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov