819 PM CDT Sat Jul 19 2025 ...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...From late tonight until further notice. * IMPACTS...At 17.0 feet, Moderate Flood Stage. Extensive inundation of agricultural land. * ADDITIONAL DETAILS... - At 8:00 PM CDT Saturday the stage was 13.5 feet and rising. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to a crest of 16.8 feet Tuesday morning. - Flood stage is 15.0 feet.