Red Flag Warning Issued for Sacramento Valley and Northern Sierra Foothills Due to High Fire Danger

The National Weather Service in Sacramento, California, has issued a Red Flag Warning for portions of the Sacramento Valley and northern Sierra foothills, effective from 11 am Saturday, September 12, 2026, through 11 am Monday. The warning highlights periods of gusty winds, low daytime humidity, and limited to poor overnight humidity recoveries, creating elevated to critical fire weather conditions. Residents are urged to exercise extreme caution, avoiding outdoor burning, properly disposing of cigarettes, and preventing sparks from equipment or vehicles.