CalFire reported the Klamathon Fire at 8,000+ acres as of 6:oo Friday morning, with 5 percent containment.
Details on the fatality were not released Friday pending notification of next-of-kin, but the victim was found in a structure in Hornbrook, according to Sheriff Jon Lopey of Siskiyou County.
The fire jumped across Interstate 5 south at the OR border in California and southbound lanes are closed in that area, authorities said.
Total calm Saturday morning replaced the 50 miles per hour (80.5 kph) gusts and forward progress of the fire was stopped at about 100 acres (40.5 hectares) or less, said county fire Capt. Dave Zaniboni.
California Gov. Edmund Brown declared a State of Emergency in Siskiyou County Thursday just after 9:30 p.m.
Fire crews are battling a rapidly growing wildfire that sparked this afternoon.
The blaze in Alpine, called the West fire, was first reported about 11:20 a.m.
Then a few miles to the north, the Vandergrift Fire has burned at least 330 acres and forced the evacuation of about 750 homes from the sprawling Marine Base Camp Pendleton, officials said.
Firefighters in Santa Barbara County were battling a new "fast-moving and wind-driven" blaze Friday night.
In southern California, firefighters were taking advantage of calm conditions to attack a small but destructive wildfire in the Santa Barbara County community of Goleta.
The largest fire burning in the state is known as the County Fire, and has scorched more than 88,000 acres in Napa and Yolo counties.
San Diego Gas and Electric says almost 1,700 customers are without power after the fire damaged the electric system. Although the flames have not crossed into OR, officials are concerned people in remote areas can't be reached in case they need to quickly evacuate.
Previous year was the worst fire season on record in the state, with thousands of homes lost and dozens killed _ from Northern California wine country south to Los Angeles and San Diego counties. Numerous structures are actively burning, and mandatory evacuations were issued for an area with about 3,200 residents.
On Saturday morning, Eric Durtschi looked at the charred remains of his rented hilltop home in Goleta. Around a dozen structures near the unincorporated town of Hornbrook have been destroyed. As the wildfires burn across the state, Cal Fire relies on local departments' strike teams for aid.