From the National Weather Service in Peachtree City:

A wind chill advisory will remain in effect through Thursday morning. Very cold temperatures combined with gusty northwest winds will produce wind chill values between minus 5 and plus 5 Wednesday night through early Thursday morning.

Any lingering moisture on the roadways may lead to the formation of black ice Thursday morning.

A very cold arctic air mass will move into the region on Saturday and some of the coldest temperatures of the winter season are expected on Sunday across all of North Georgia. Some winter precipitation is possible on Monday but it is still too early to forecast with any confidence any accumulations.