Flood Warning Issued for Iowa River at Marengo in Benton and Iowa Counties
This alert is no longer in effect.
NOAA issued it on July 19, 2026, 5 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Quad Cities IA IL has issued a Flood Warning for the Iowa River at Marengo affecting Benton and Iowa Counties in Iowa, with minor flooding forecast from Friday afternoon to late Monday evening.
Read this weather record in 30 seconds
- Record type
- Flood Warning
- Affected area
- Benton and Iowa Counties, Iowa
- Issued
- July 19, 2026
- Issuing authority
- NWS Quad Cities IA IL
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 5 weeks ago; use the issuing agency's live warning service for current conditions in Benton and Iowa Counties, Iowa.
Alert Details
A Flood Warning has been issued by the National Weather Service in Quad Cities IA IL. The alert is effective from Friday afternoon through late Monday evening.
Affected Areas
The warning covers the Iowa River at Marengo, affecting Benton County and Iowa County in Iowa.
What You Should Do
Turn around, don't drown when encountering flooded roads. Motorists should not attempt to drive around barricades or drive cars through flooded areas.
Expected Conditions
Minor flooding is forecast. At 16.0 feet, water affects agricultural land along the river and is several feet deep in places. The river is expected to crest at 15.7 feet.
Timeline
The alert was issued June 17 at 8:59PM CDT. Flooding begins Friday afternoon (onset June 19 at 4:00PM CDT), with a crest Saturday evening. The river falls below flood stage early Monday afternoon, and the warning ends June 22 at 9:45PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (913 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 19, 2026.
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