By Thursday afternoon, most of the highway had reopened, many evacuees were able to return home and the blaze near Castaic Lake, a reservoir about 40 miles northwest of downtown Los Angeles, was 14 percent contained. The fire continued to burn away from homes in suburbs outside of Santa Clarita, and through woody hillsides at a state park.

A small number of residents were allowed to return to the devastated Pacific Palisades and Altadena areas and firefighters quickly controlled small blazes that broke out.