Smoke fills the sky from a prescribed burn at Beale Air Force Base, Calif., June 19, 2012. Team Beale firefighters burned the M60 machine gun range to prevent the field from catching on fire from hot casing during firing training. (U.S. Air Force photo by Senior Airman Allen Pollard/Released)
Airman 1st Class Sean Russell, 9th Civil Engineering Squadron firefighter, uses a flare to ignite the remaining unburned patches of grassland during the prescribed burn of the M60 machine gun range at Beale Air Force Base, Calif., June 19, 2012. Team Beale firefighters often support local fire departments during the fire season. (U.S. Air Force photo by Senior Airman Allen Pollard/Released)
Airman 1st Class Dillon Johnson, 9th Civil Engineering Squadron firefighter, mans the hose on engine 16 during mop up duty at Beale Air Force Base, Calif., June 19, 2012. Team Beale firefighters perform mop up duty to prevent any embers from spreading fire into other areas. (U.S. Air Force photo by Senior Airman Allen Pollard/Released)