Georgia Power said crews are working to restore service to more than 600 customers in metro Atlanta after storms downed trees and power lines.
The utility reported early Thursday that most of the customers were on the northern and northeastern parts of metro Atlanta.
Authorities said lightning associated with the Wednesday evening storms was believed to be the cause of several fires in at least three metro Atlanta counties.
In Union City, a lightning strike sparked a fire at a retirement home. No injuries were reported. The Atlanta Journal-Constitution reports that a house in Cherokee County was engulfed in flames after a lightning strike.
In Rockdale County, minor flooding, down trees and power lines were reported in downtown Conyers, which sustained significant damage. No injuries were reported.