Overview
- The National Weather Service said Sunday at 11:33 a.m. that Los Angeles County remains under an air quality alert through midnight Tuesday, Dec. 16.
- The alert covers numerous areas including the San Fernando and San Gabriel valleys, Santa Clarita Valley, Malibu, Palos Verdes Peninsula, Downtown Los Angeles, and the Santa Monica Mountains.
- The South Coast Air Quality Management District’s mandatory No‑Burn rule remains in effect for the South Coast Air Basin, prohibiting wood, pellet, and manufactured fire‑log burning indoors and outdoors.
- NWS San Diego reported separate alerts for Orange, Riverside, and San Bernardino areas through Sunday at 1:15 p.m.
- Officials warn that PM2.5 from smoke can trigger asthma attacks and increase ER visits, and they advise staying indoors, using AC or HEPA purifiers, avoiding devices that pull in outside air, limiting outdoor exertion, and skipping open burning.