Published: May 13, 2011 4:56 PM EDT
Updated: May 10, 2011 1:54 PM EDT

COLLIER COUNTY, Fla.- A wildfire that's been burning in the Big Cypress National Preserve is causing smoke to waft across much of Southwest Florida.

On Tuesday, the smell of smoke was strong in many areas of Broward and Miami-Dade counties.

The smoke is from a brush fire that officials believe started with a lightning strike on April 26 in the Big Cypress Preserve. Officials with the state's Division of Forestry said the fire is about 95 percent contained. Officials say some 38,130 acres have burned as of Thursday. The fire is expected to be contained by May 18.