The National Weather Service issued a frost advisory at 12:43 p.m. on Thursday valid for Friday between 3 a.m. and 8 a.m. for Marion, Lamar, Fayette, Winston, Walker, Blount, Etowah, Calhoun, Cherokee, Cleburne, Jefferson, Shelby, St. Clair, Talladega, Clay and Randolph counties. The weather service adds, “Temperatures as low as…