More than 700 firefighters are battling the Carstens fire that has charred at least 1,600 acres, the Los Angeles Times reported.
The fire was estimated to be 15 percent contained Monday night but the National Weather Service issued a red flag fire warning for the Sierra Nevada and northeast California because of gusty winds and low relative humidity.
The blaze broke out Sunday afternoon east of State Road 140 in the Midpines area, the California Department of Forestry and Fire Protection said.
No structures were reported damaged but evacuations were ordered.
In Southern California, the Hathaway fire north of Banning is reported to be 73 percent contained after burning more than 3,800 acres in the San Bernardino Mountains, the U.S. Forest Service said.