A Dense Fog Advisory has been issued for large parts of Indiana, Michigan, and Ohio, causing serious concern for drivers. With visibility reduced to less than a quarter-mile in some areas, motorists are being urged to drive with extreme caution until the fog lifts Thursday morning.
According to the National Weather Service (NWS), the thick fog will make roads especially treacherous overnight, with conditions improving only after sunrise. Law enforcement officials are warning that poor visibility increases the risk of collisions and multi-car pileups, especially on highways and rural roads.
Which Areas Are Affected?
The Dense Fog Advisory covers multiple counties across three states:
- Indiana: Areas such as Steuben, De Kalb, Allen, Wells, Adams, Blackford, and Jay counties are seeing dangerous driving conditions.
- Michigan: Fog is thickest in Branch and Hillsdale counties, making travel difficult.
- Ohio: Counties including Williams, Fulton, Defiance, Henry, Paulding, Putnam, Van Wert, and Allen are experiencing near-zero visibility.
Why Is This Fog So Dangerous?
This isn’t just regular morning fog—this is a dense, low-lying fog that can significantly reduce a driver’s ability to see just a few feet ahead. It’s forming due to cool, moist air trapped near the surface with little wind to disperse it.
At night, temperatures drop, increasing moisture condensation, which makes the fog even thicker. With streetlights and vehicle headlights reflecting off the dense fog, visibility can become nearly impossible in some areas.
What Should Drivers Do to Stay Safe?
Reduce Speed: Driving at normal speeds in thick fog is extremely dangerous. Slow down and give yourself extra time to react.
Use Low-Beam Headlights: High beams reflect off the fog, making visibility even worse. Stick to low beams or fog lights if your vehicle has them.
Increase Following Distance: A safe distance between vehicles gives you time to stop if the driver ahead suddenly brakes.
Avoid Sudden Lane Changes: Quick maneuvers can be dangerous when visibility is low. Stay in your lane and make smooth, gradual movements.
Stay Updated: Listen to weather and traffic reports to get the latest information on conditions in your area.
When Will the Fog Clear?
The dense fog is expected to last until 7 a.m. EST Thursday, when the sun begins to rise and temperatures increase. As the day warms up, moisture will dissipate, and visibility will gradually improve.
However, fog may remain in some low-lying areas or valleys for a few hours longer, so drivers should remain cautious during the early morning commute.
Final Warning: Drive Safe or Stay Off the Roads!
Thick fog like this can be just as dangerous as icy roads or heavy rain. If you don’t have to drive, it’s best to wait until conditions improve. If you must be on the road, follow safety guidelines to protect yourself and others.
With poor visibility leading to major accident risks, this is not the time to take chances. Stay safe, stay informed, and be prepared for a difficult drive until the fog finally clears
