Illinois Dense Fog Advisory | Effective 05/09/2026 02:58
* WHAT...Visibility less than one mile in dense fog.
* WHERE...Portions of central and west central Illinois.
* WHEN...Until 8 AM CDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.