On Friday, the South Coast Air Quality Management District issued a smoke advisory for the fourth consecutive day, largely due to the elevated levels of unhealthy pollution billowing from the Eaton Fire in Altadena.

Fanned by fierce winds and fueled by vegetation bone-dry after a long period of little or no rain, the Los Angeles fires broke out on Tuesday and have relentlessly burned more than 34,000 acres (13,760 hectares), or some 53 square miles (137 sq km). Neighborhoods have turned to ash in some parts of Los Angeles.