AMADOR COUNTY --
A 14,700-acre wildfire is burning off Butte Mountain Road, east of Jackson in Amador County.
The fire, which is being called the Butte Fire, started just before 2:30 p.m. on Wednesday. High temperatures and low humidity are helping the flames spread quickly.
The fire is threatening homes and evacuations have been ordered for Canyon View, Fig Tree Lane, Ponderosa Way, Amador Lane and the end of Electra and Charamuga Ranch Road.
Butte Mountain Road is closed to traffic. Mokelumne Hill Elementary School and San Andreas Town Hall are listed as evacuation centers.
The fire has burned into Calaveras County. The fire is 20 percent contained.
About 12,100 customers were left without power on Wednesday in the areas of Pine Grove, West Point, Jackson and other nearby areas because of the fire. PG&E is working with Cal Fire to determine how to safely restore power, but some customers could be without power for 24 hours.
The cause of the fire is under investigation.
Stay with FOX40 and FOX40.com for updates on this developing story.