MIAMI-DADE COUNTY, Fla. — The National Weather Service announced on Saturday that there was an Air Quality Alert in effect until 10 a.m. on Sunday in Miami-Dade and Broward counties.

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The alert mostly impacted “unusually sensitive people” who need to ”consider making outdoor activities light and short” and “go inside to cleaner air” if they have symptoms, according to the U.S. Environmental Protection Agency.

NWS meteorologists warned that “near surface smoke” is likely to worsen into Saturday night, as “thunderstorm winds cause spreading into populated areas followed by poor dispersion.”

Two wildfires between Krome Avenue and the Florida Turnpike had burned more than 20,000 acres and were mostly contained by Saturday afternoon.

The Florida Forest Service reported the wildfire known as “The Quarry 2″ had burned 19,003 acres and was 100% contained, and a wildfire known as “Well” had burned 1,525 acres and was 70% contained.

Miami-Dade Fire Rescue personnel recommended limiting outdoor activity when possible, keeping windows and doors closed, and setting the air conditioner to recirculate. Miami-Dade was also under a heat advisory.

Related report: Some traffic closures remain in effect as Miami-Dade brush fires scorch over 20K acres

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