A lightning strike ignited the fire about 4:30 p.m. Monday.
By Tuesday evening, it had burned about 1,300 acres of swampland near U.S. 27 and Sheridan Street, but no people or homes are in danger, Florida Division of Forestry officials said.
''It's not affecting anything. It's not putting up any smoke problems,'' forestry spokeswoman Caren Radel said.
Forestry workers spent Tuesday conducting a ''burnout'' around the fire, said Bill Parker, also a forestry division spokesman. They burned acres of sawgrass in the fire's path, hoping to quash further spreading. Afternoon rain slowed the burnout effort, but it also weakened the strength of the blaze, Parker said.
''It's a good thing in a way because it took some punch out of the fire, but it's also bad because they were trying to get the burnout done quickly,'' he said.
Broward Sheriff's Office and Florida Power & Light also have been monitoring the fire, which was expected to continue through today.
''Unless we get some major rainstorm, it's going to keep burning until they finish the burnout,'' he said.
