A stronger atmospheric river is set to hit Northern California on Monday and then hit Los Angeles County on Tuesday, aiding ...

The strongest of the winds are expected in Ventura and Los Angeles counties overnight Tuesday into Wednesday morning. The National Weather Service ... For a map of areas being monitored or ...

South Coast AQMD—the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties—covers an area of 10,743 square miles that is ...