 The National Weather Service in the Quad Cities has issued a severe thunderstorm warning for northwestern Louisa County, northeastern Keokuk County, southern Johnson County, northern Washington County, southeastern Iowa County, until 6.15 p.m. At 5.25 p.m., severe thunderstorms were located along a line extending from Parnell to near Harper, moving east at 35 miles an hour. Expected hazards include 70 miles an hour wind gusts.