Active Weather Alerts
Dense Fog Advisory
Issued: 6:30 AM Dec. 24, 2025 – National Weather Service
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...In Illinois, Clinton IL, Fayette IL, Marion IL, Washington IL, Monroe IL, Randolph IL, and Saint Clair IL Counties. In Missouri, Madison MO, Saint Francois MO, and Sainte Genevieve MO Counties. * WHEN...Until 9 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Visibility will change rapidly in short distances. Drivers should be remain vigilant, especially when approaching low lying areas and areas adjacent to rivers, where fog is likely to be more dense than outlying locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&
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