11:10 AM Update: Heavy smoke has caused Butte County Air Quality Management District officials to issue the highest ever air quality forecast. Officials say the 200-plus forecast for ozone and particulate matter is unhealthy for EVERYONE, and you should limit going outdoors, exercise and exertion.
10:15 AM Update: The Frey Fire, which is the largest blaze in Butte County, has grown to 1,300 acres. Crews continue to focus efforts on the fires in the Concow area. Crews continue to hold the line on the West Branch Fire which is burning in near the Feather River.