The Putah Fire, which started Monday after a prescribed burn escaped, has burned 869 acres and is 30% contained. A red flag warning is in effect for the North Bay interior mountains and East Bay hills due to low humidity and strong winds.
PG&E has announced Public Safety Power Shutoffs in several counties. Firefighters continue to battle the blaze in steep terrain near Highway 128 west of Winters.
Temperatures are expected to remain well above normal through Friday.