Birmingham, AL – A widespread dense fog advisory is in effect for portions of Alabama and southern Tennessee Friday morning, creating hazardous driving conditions due to visibility dropping below a quarter mile.
According to the National Weather Service offices in Birmingham and Huntsville, the advisory remains in place until 8 a.m. CDT for several counties, including Jefferson, Madison, Cullman, Limestone, Morgan, DeKalb, and Jackson in Alabama, as well as Franklin, Lincoln, and Moore counties in Tennessee.
The fog is concentrated in low-lying areas, valleys, and near river basins, where cooler overnight temperatures have contributed to dense moisture accumulation. Cities affected include Birmingham, Huntsville, Decatur, Gadsden, Anniston, and Fort Payne. Commuters in these regions are likely to experience significant visibility reduction during the morning rush.
Transportation departments urge drivers to slow down, use low-beam headlights, and maintain increased following distances while navigating through affected areas.
This type of early morning fog is common in April, especially when moist air meets cooling ground surfaces overnight. Conditions are expected to improve shortly after sunrise as temperatures rise.
No school delays have been reported at this time, but motorists are advised to allow extra travel time and stay alert on roadways until fog lifts.
