BECKWOURTH, Calif. (AP) – A Northern California wildfire exploding through bone-dry timber has prompted Nevada authorities to evacuate a border-area community. The Beckwourth Complex – a merging of two lightning-caused fires – headed into Saturday showing no sign of slowing its rush northeast from the Sierra Nevada. Across the state line, the Washoe County Sheriff’s Office asked people to evacuate a section of Rancho Haven, north of Reno. Other fires are burning in Oregon, Arizona and Idaho. Authorities say fire conditions are tough as a heat wave engulfs the region, promising triple-digit temperatures in many areas through the weekend.