* WHAT…Visibility one quarter mile or less in dense fog.
* WHERE…Blount, Calhoun, Cherokee, Etowah, Fayette, Jefferson,
Lamar, Marion, Pickens, Shelby, St. Clair, Talladega, Tuscaloosa,
Walker, and Winston Counties.
* WHEN…Until 9 AM CDT this morning.
* IMPACTS…Low visibility could make driving conditions hazardous.