FORT WAYNE, Ind. – Thick fall fog is blanketing portions of northern Indiana, southwest Michigan, and northwest Ohio early Monday, creating hazardous travel before sunrise. The National Weather Service has issued a Dense Fog Advisory in effect until 10 a.m. EDT, with visibility dropping below a quarter mile in some areas.
According to the National Weather Service office in Northern Indiana, the fog formed overnight under clear skies and light winds, impacting counties including Allen, DeKalb, Noble, and Whitley in Indiana; Branch and Hillsdale in Michigan; and Fulton, Defiance, and Van Wert in Ohio. Drivers along I-69, U.S. 30, and U.S. 24 should expect rapidly changing conditions and reduced visibility on rural roads and bridges.
Law enforcement and the Indiana Department of Transportation urge commuters to slow down, use low-beam headlights, and allow extra distance between vehicles. “Sudden patches of dense fog can make it difficult to see stoplights or other cars until it’s too late,” officials warned early Monday.
The fog is expected to lift gradually by midmorning as sunlight mixes out the low-level moisture. Schools in some rural districts may see minor bus delays, and early flights out of Fort Wayne International could experience brief visibility restrictions.
Drivers are advised to keep headlights on, avoid using high beams, and pull over safely if visibility drops to near zero. Clearer, cooler weather is expected later today as high pressure builds in from the west.