The rapidly growing Alamo Fire prompted air quality advisories on Friday for southern San Luis Obispo County and northern Santa Barbara County.
The fire, which started burning Thursday afternoon near Twitchell Reservoir, has burned parts of each county and produced large plumes of smoke that are being carried across the Central Coast by shifting winds.
The Santa Barbara County public health department recommends that everyone, especially those with heart or lung disease, older adults and children, should limit time spent outdoors when high concentrations of smoke and particles are in the air. It also recommends keeping windows and doors closed and running the air conditioner with the fresh air intake closed and the filter clean.
The air quality watch issued for Santa Barbara County will be in effect through the weekend.