Public Safety · Lassen County
Flat Fire Discovered Oct. 18 at 11:50 a.m. in Lassen County
A wildfire named the Flat Fire was first discovered at 11:50 a.m. on October 18, 2026, in Lassen County, California. The fire is burning on federal land managed by the United States Forest Service. As of publication, no containment data was available and the cause had not been determined. The report is sourced from the National Interagency Fire Center.