WHAT
Visibility one quarter mile or less in dense fog.
WHERE
Blount, Calhoun, Chambers, Cherokee, Clay, Cleburne, Etowah, Jefferson, Lee, Randolph, Russell, Shelby, St. Clair, and Talladega Counties.
WHEN
Until 10 AM CST Friday.
IMPACTS
Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.