This story was updated on Tuesday, Jan. 21 at 7:53 p.m.
Snow began falling in Atlanta on Tuesday afternoon as part of a system that led schools and flights to be canceled, government facilities shut down and MARTA bus and streetcar service to be suspended.
The metro Atlanta counties of Fulton, DeKalb, Gwinnett, Cobb and Clayton were upgraded from a winter weather advisory to a winter storm warning running through 7 a.m. Wednesday. An area of Central and South Georgia from Columbus to Macon to Savannah remains under a winter storm warning and could see up to 5 inches of snow, according to GEMA meteorologist Will Lanxton.
Snow began falling in Atlanta shortly after 2 p.m. Tuesday and continued until about 5 p.m…