The Acorn Fire is at about 150 acres with containment at 10%. The blaze started Thursday afternoon around Manzanita Circle and Acorn Drive near Robinson Rancheria. CalFire arrived shortly after 1 with the incident commander requesting engines, water tender, and additional crews. Evacuation warnings for a couple of zones adjacent to the fire were ordered. Forward progress on the fire was reported just after 4:30 pm.