Investigators have determined a car accident started this fire.
The Mix Canyon Area and Canyon Creek campground have been evacuated. Three hikers in the area were safely rescued.
Flames broke out around 2:30 p.m. at the south end of Lake Berryessa in the Cold Canyon area near Highway 128. The fire has since crossed over the Cold Canyon ridge. Steep terrain and winds in the area are making the firefight difficult. Not many homes are threatened since the area is fairly remote.
Cal Fire says they have several air tankers doing water and fire retardant drops. They also have several hundred firefighters battling this fire from the ground.
Wind guests are reaching up to 31 mph and steady winds are coming from the southwest at 21 mph. It is 73 degrees in the area with 38 percent humidity.
PHOTOS: Large fire burns south of Lake Berryessa
Fire officials say may people are concerned, due to so much smoke in the area, but that there is no threat to the city of Davis or UC Davis.
Current Evacuations: Quail Ridge Community, Canyon Creek and Lake Solano Campgrounds, and Cold Canyon Area
The Red Cross has opened an evacuation center at the Winters Community Center, located at 201 Railroad Ave, Winters, CA.
A large animal evacuation center has opened at 29775 County Road 31, Winters, CA.
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While the cause of the #WraggFire near Lake Berryessa was initially reported as a vehicle accident, the cause remains under investigation.— CAL FIRE PIO Berlant (@CALFIRE_PIO) July 23, 2015
The sky west of Davis is smoke from a 700+ acre fire near lake Berryessa. No threat to the campus/the City. We are getting many inquiries...— Nathan Trauernicht (@FireChiefT) July 23, 2015
Highway 128 is closed in the Lake Berryessa area due to the 300 acre #WraggFire in Napa County. Evacs in the Cold Canyon area in progress.— CAL FIRE PIO Berlant (@CALFIRE_PIO) July 22, 2015
Firefighters are battling a 25 acre fire off of Hwy 128 near Greaves Rd, Lake Berryessa (Napa County) #WraggFire— CAL FIRE (@CAL_FIRE) July 22, 2015