 The National Weather Service in the Quad Cities has issued a tornado warning for Southern Buchanan County, Northeastern Benton County, Northwestern Linn County, until 5.30 p.m. At 4.51 p.m., tornado-producing storms were located along a line extending from near Lime Creek County Park to near Benton County Fairgrounds, moving east at 35 miles an hour. Expected hazards included a damaging tornado and quarter-size hail. A tornado has been reported by the public.