The Flood Warning continues for the following rivers in Iowa. Iowa River at Marshalltown affecting Marshall County. Iowa River near Tama Hwy E49 affecting Tama County. Cedar River at Cedar Falls affecting Black Hawk County. Cedar River at Waterloo affecting Black Hawk County. Beaver Creek at New Hartford affecting Butler and Black Hawk Counties. Black Hawk Creek at Hudson affecting Black Hawk County. Des Moines River at Des Moines SE 6th St affecting Polk County. Des Moines River at Fort Dodge affecting Webster County. East Fork Des Moines River near Algona affecting Humboldt and Kossuth Counties. Raccoon River at Des Moines Fleur Dr affecting Polk County. * WHAT. Minor flooding is occurring and minor flooding is forecast. * WHERE. The Des Moines River at Des Moines SE 6th St, or from below the Center Street dam. to Runnells. * WHEN. Until tomorrow afternoon. * IMPACTS. At 25.7 feet, Water surrounds the base of Simon Estes Amphitheater. * ADDITIONAL DETAILS. - At 2:00 AM CDT Thursday the stage was 25.0 feet. - Forecast. The river is expected to fall below flood stage late tomorrow morning and continue falling and remain below flood stage. - Flood stage is 24.0 feet.