ABC13 Chief Meteorologist Travis Herzog first spotted the fire on 13 Alert Radar as the smoke billowed over the Dayton area.
Officials reported the fire on Thursday afternoon in the area of CR 677 just north of Dayton.
SkyEye was overhead, showing flames spreading across an empty field.
Dayton VFD said mutual aid was en route to help contain the fire and advised residents to avoid the area.
Firefighters reported the fire burned approximately 766 acres and was fully contained by 6 p.m., adding that crews were working to extinguish hot spots.