Officials expect a fire in South Walton that has already damaged 18 structures to burn through the night.
Crews are fighting the blaze, watching for additional fires that may be sparked by embers and building fire lines to help prevent the fire from spreading.
About 575 acres had burned by 10:30, covering a swath of land reaching to Choctawhatchee Bay on the north side to the famed County Road 30A on the south.
Walton County Sheriff’s Office spokeswoman Corey Dobridnia said several homes on Thompson Drive had been consumed by the fire.
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