Fire burning in Fairmont area prompts evacuation warning; over 800 acres burnedL.A. County firefighters are battling a fast-growing wildfire in the Fairmont area just north of Lake Hughes, leading to evacuation warnings. L.A. County firefighters are battling a fast-growing wildfire in the Fairmont area just north of Lake Hughes, leading to evacuation warnings. L.A. County firefighters are battling a fast-growing wildfire in the Fairmont area just north of Lake Hughes, leading to evacuation warnings. L.A. County firefighters are battling a fast-growing wildfire in the Fairmont area just north of Lake Hughes, leading to evacuation warnings. FAIRMONT, Calif. (KABC) -- Los Angeles County firefighters are battling a fast-growing wildfire in the Fairmont area just north of Lake Hughes Thursday afternoon, leading to evacuation warnings.