Fire information officers at the Okefenokee National Wildlife Refuge say the Honey Prairie Fire has grown by about 1,000 acres to nearly 292,700 acres.
Officials say the estimate was made after a 7 p.m. reconnaisance flight on Thursday, and the fire has likely grown since then.
The fire information center says winds from thunderstorms made the fire more active south of Okefenokee Swamp Park near U.S. 1 south of Waycross. The center says lightning sparked four new fires and firefighters contained them quickly.
Fire suppression units from the Sweat Farm Again Fire helped the Georgia Forestry Commission suppress a new fire, the Deere Fire, five miles east of the Cogdell Community on Georgia 122.
Information officers say light rain fell Friday morning on the southern portion of the fire.