Illinois Moderate Special Weather Statement | Effective 08/20/2026 03:40

Headline: 
Special Weather Statement issued August 20 at 5:40AM CDT by NWS Lincoln IL
Event: 
Special Weather Statement
Urgency: 
Expected
Effective: 
August 20, 2026 - 3:40am
Expires: 
August 20, 2026 - 5:45am
Description: 
Patchy dense fog has formed across west central Illinois in the last couple of hours. Visibility may fall below one-quarter mile at times through early morning, leading to potentially hazardous travel conditions. Expect rapid changes in visibility over short distances, with visibility possibly even near zero at times. Be sure to slow down if you encounter dense fog. Use low beam headlights if driving, and leave plenty of distance between you and the vehicle ahead.
Area Description: 
Fulton; Schuyler; Mason; Cass; Menard; Scott; Morgan; Sangamon
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov