Firefighters on scene of grass fire on Berryessa Knoxville Road, Spanish Flat

Firefighters on scene of grass fire on Berryessa Knoxville Road, Spanish Flat

(KRON) -- Firefighters in Napa are responding to a grass fire near Oak Shores Day Use Area on the 5500 block of Berryessa Knoxville Road, Spanish Flat Wednesday afternoon. The fire was initially reported at 4 acres, but according to a CalFire update, the blaze has grown to 10 acres. As of just after 1:30 p.m., forward progress has been halted and the fire is 50% contained. Fire officials urge anyone traveling in the area, which is about 4 miles …