The Bay Area Air District has been divided into five reporting zones for the air quality forecast. Spare the Air and Winter Spare the Air Alerts will be issued for the entire Bay Area if air quality is forecast to be unhealthy for any one or more of the reporting zones.
Air Quality Forecast Reporting Zones
Below you will find Bay Area cities listed under their respective air quality forecast reporting zones. You can also check the Air District Jurisdiction page for maps of the Air District's borders in Solano and Sonoma counties.