Up to eleven inches of rain has lead to flooding in parts of southwest Nebraska. A flash Flood warning is in effect this for the area. Last night, the National Weather Service says storms dropped six inches or more of rain across Perkins and Chase counties. The service says the highest rain amount came just west of Champion, at nine-point-seven-three inches and over eleven inches was reported near Imperial. Extensive flooding has been reported in Imperial, Champion and Lamar. Officials say U-S Highway Six west of Imperial is under two feet of water, and many county roads in western Chase County are washed out. Frenchman Creek is also overflowing the dam at Champion.