A fast-moving brush fire ignited in Southern California and quickly grew to more than 4,200 acres, forcing evacuations in San Bernardino County.
The blaze, dubbed the Ranch Fire, was first reported about 1:35 p.m. on June 10 just south of Apple Valley, about 90 miles outside of Los Angeles, according to Apple Valley Fire Department records.
It scorched between 80 and 100 acres within an hour, burning at a "rapid" pace as it was driven by wind, according to Cal Fire. By 3 p.m., it was mapped at 369 acres, and by 9:30 p.m. it had grown beyond 4,205 acres. No containment lines had been established early the morning of June 11.
Cal Fire announced at 3:25 p.m. that the flames were presenting an "immediate structure threat."
"Fire behavior has intensified due to shifting weather conditions, including increasing winds and low humidity, contributing to rapid fire spread," according to a Cal Fire incident report.
