FFWOAX The National Weather Service in Omaha/Valley has issued a * Flash Flood Warning for... Southern Harrison County in southwestern Iowa... Northwestern Mills County in southwestern Iowa... Pottawattamie County in southwestern Iowa... Southern Shelby County in southwestern Iowa... Southeastern Dodge County in east central Nebraska... Douglas County in east central Nebraska... Sarpy County in east central Nebraska... Eastern Saunders County in east central Nebraska... Southeastern Washington County in east central Nebraska... * Until 730 AM CDT. * At 230 AM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. This heavy rain could especially affect portions of north Omaha as storms train over the area. * Some locations that will experience flash flooding include... Omaha, Council Bluffs, Bellevue, Papillion, Blair, Ralston, Wahoo, Gretna, Bennington, Boys Town, Elkhorn, Offutt AFB, Millard, La Vista, Carter Lake, Missouri Valley, Valley, Oakland and Avoca.