An evacuation order has been issued for all of Lake Piru Recreation Area and east to the Los Angeles County line, south to SR 126, west to Center Street.

The fire has scorched an estimated 5,400 acres north of Los Angeles, but Ventura County officials said firefighters were making “good progress in suppressing the blaze.”

Temperatures in the area are near 100 degrees and humidity as low as 15 percent. The southern part of California has seen very little rain, drying out vegetation and making it "ripe to burn," the National Weather Service (NWS) for Los Angeles warned.