Iowa Severe Flood Warning | Effective 06/21/2026 18:58
...The Flood Warning continues for the following rivers in Iowa...
Illinois...
Iowa River at Marengo affecting Iowa and Benton Counties.
La Moine River at Colmar affecting Hancock and McDonough Counties.
* WHAT...Minor flooding is occurring.
* WHERE...Iowa River at Marengo.
* WHEN...Until tomorrow afternoon.
* IMPACTS...At 15.0 feet, Water reaches the bottom of the levee
surrounding Marengo. Water affects low lying agricultural land
along the river
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Sunday the stage was 15.2 feet.