Columbus, Ohio – Drivers across southern Ohio could face dangerous conditions during the Wednesday morning commute as dense fog blankets areas near the Ohio River and the Scioto Valley.
According to the National Weather Service in Wilmington, the fog began thickening before dawn and is expected to persist through at least 9 a.m. Areas with the lowest visibility include southeastern Ohio, where some traffic cameras show visibility near zero, particularly on elevated roads and bridges.
Interstate 52 and U.S. Route 23 near Portsmouth, as well as riverfront roads in Gallipolis and Ironton, are seeing some of the worst conditions. Tail lights and street lamps are barely visible, and Ohio DOT officials urge extreme caution. Drivers should reduce speed, use low beams, and allow extra time for travel.
The thick fog is caused by high overnight humidity and light winds, trapping moisture near the surface. It’s the most widespread morning fog event since early April, though not unusual for late spring.
Fog should gradually lift mid-to-late morning, but isolated pockets could linger in valleys. Another advisory could be issued if conditions worsen. If you’re heading out soon, take it slow — and keep your headlights on.