Active Weather Alerts
River Flood Warning
Issued: 2:02 PM Apr. 15, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM THURSDAY AFTERNOON TO LATE FRIDAY EVENING... * WHAT...Minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...From Thursday afternoon to late Friday evening. * 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 AM CDT Wednesday the stage was 13.7 feet and rising. - Forecast...The river is expected to rise above flood stage of 15 feet early tomorrow afternoon to a crest of 15.2 feet Friday morning. The river then falls below flood stage Friday afternoon. - Flood stage is 15.0 feet. &&
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