A lightning caused 550-acre wildfire is burning north of Rock Island northwest of Keane-Grade Road.Central Washington Interagency Communication officials say Sunday lightning storms sparked the fire shortly before 1p.m.Kay McKellar of Douglas County Fire District 2 says 30 crews members from several jurisdictions are combating the blaze. . .
McKellar says the fire is being fueled by grass. . .sage brush and timber.No structures are threatened at this time and there is no estimation for containment.