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.

The Canyon Fire ignited near Holser Canyon Road, spreading from 30 to 1,000 acres in just two hours. Check the map of the fast-spreading fire below.

A brush fire broke out Monday morning in the Big Bear area and expanded to more than 300 acres hours later at the start of a warm week in Southern California. The Gold Fire in San Bernardino National Forest was estimated at about 350 acres late Monday afternoon with no containment.