Dense Fog Advisory 03/04/2026 06:55 Illinois

Headline: 
Dense Fog Advisory issued March 4 at 8:55AM CST until March 4 at 9:00AM CST by NWS Chicago IL
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 4, 2026 - 6:55am
Expires: 
March 4, 2026 - 8:00am
Description: 
Visibilities have largely improved around the area, therefore the advisory will be allowed to expire. Be cautious of lingering patches of dense fog through mid-morning.
Area Description: 
Winnebago; Boone; McHenry; Ogle; Lee; De Kalb; Kane; Northern Cook
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov