Overview

• The Mile Marker 39 fire has grown to more than 19,000 acres with 0% containment, while the nearby Sawgrass Fire remains about 250 acres.
• Air quality that hit “unhealthy” levels Wednesday in parts of Broward improved to “moderate” Thursday, and an overnight alert has since been lifted, though haze persists.
• The National Weather Service warned that smoke is spreading into Broward, southern Palm Beach, and parts of Miami-Dade, with roadway visibility at times near 3 miles or less.
• Officials report no injuries and no structures threatened, and the cause of the fires remains under investigation.
• Fire crews are attacking the blazes with engines, aircraft, and airboats, but wetlands in the Everglades are limiting access and slowing suppression efforts.