 The National Weather Service in the Quad Cities has issued a flash flood warning for Southern Iowa County, Southern Johnson County, Northeastern Keokuk County, Northern Washington County until 12-15 a.m. Wednesday. At 6.04 p.m., Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1.5 to 2.5 inches in one hour.