St. Louis, MO – A Dense Fog Advisory remains in effect for parts of Missouri and Illinois until 9 AM CST Friday, with visibility dropping to a quarter-mile or less in some areas.
According to the National Weather Service in St. Louis, the advisory impacts central, east central, northeast, and southeast Missouri, as well as southwest, south central, and west central Illinois. Cities affected include St. Louis, Belleville, Alton, Quincy, Hannibal, and Vandalia.
Drivers should exercise caution, as low visibility may create hazardous travel conditions. Motorists are advised to slow down, use headlights, and maintain extra following distance.
Foggy conditions are expected to improve by mid-morning as temperatures rise. Stay updated with local forecasts and road conditions.
