About half of Georgia will be on a tornado watch until 11 p.m.
The National Weather Service said tornadoes are possible. People should watch the sky and be alert, but no tornado has actually been sighted.
The tornado watch includes Baldwin, Bibb, Crawford, Hancock, Houston, Jones, Lamar, Monroe, Peach, Putnum, Twiggs and Wilkinson counties.
The Federal Emergency Management Agency said weather radios, commercial radio stations and television newscasts may have the latest information. People should be alert to changing weather conditions, particularly approaching storms. People should take shelter if they see warning signs including a dark or greenish sky; large hail; a large, dark, low-lying cloud, particularly one that rotates; and a roar similar to a freight train.