Iowa alerts

Iowa County, Iowa weather alerts

1 National Weather Service alert is in force for Iowa County: a flood warning.

Checked Sun, Sep 20, 2026, 3:41 PM CDT. Times are Central Daylight Time.

Iowa County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Iowa County, Iowa. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Iowa County, Iowa Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

Every product in force for Iowa County, worst first, with its full text.

Flood Warning

Severe

Flood Warning issued September 20 at 10:02AM CDT until September 22 at 2:00AM CDT by NWS Quad Cities IA IL

Begins Until 34 hr 18 min left

Areas Benton, IA; Iowa, IA

Full text

...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Iowa... Iowa River at Marengo affecting Iowa and Benton Counties. * WHAT...Minor flooding is forecast. * WHERE...Iowa River at Marengo. * WHEN...From this evening to late Monday night. * 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 9:00 AM CDT Sunday the stage was 12.7 feet and rising. - Forecast...The river is expected to rise above flood stage this evening to a crest of 15.4 feet overnight. It will then fall below flood stage Monday afternoon. - Flood stage is 15.0 feet.

What to do

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov/quadcities. The next statement will be issued by Monday morning.

NWS Quad Cities IA ILShare this alert

The past year in Iowa County

In the past year the National Weather Service issued 128 alerts for Iowa County, including 26 severe thunderstorm warnings, 8 flood warnings, 4 flash flood warnings and 3 extreme heat warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning26Sep 8, 2026
Flood Warning8Sep 20, 2026
Flash Flood Warning4Sep 20, 2026
Extreme Heat Warning3Sep 2, 2026
Freeze Warning3Apr 20, 2026
High Wind Warning3Mar 15, 2026
Red Flag Warning2Mar 28, 2026
Tornado Warning2Jun 11, 2026
Winter Storm Warning2Dec 18, 2025
Blizzard Warning1Mar 15, 2026
Extreme Cold Warning1Jan 23, 2026
Severe Thunderstorm Watch10Aug 13, 2026
Flood Watch9Sep 19, 2026
Tornado Watch9Jul 20, 2026
Extreme Heat Watch2Jul 26, 2026
Winter Storm Watch2Mar 15, 2026
Extreme Cold Watch1Jan 23, 2026
Fire Weather Watch1Feb 18, 2026
High Wind Watch1Mar 15, 2026
Dense Fog Advisory13Sep 17, 2026
Winter Weather Advisory8Mar 16, 2026
Wind Advisory7Mar 12, 2026
Cold Weather Advisory4Jan 26, 2026
Frost Advisory3May 7, 2026
Heat Advisory3Aug 31, 2026

Warnings issued

  1. Flood Warning
  2. Flood Warning
  3. Flood Warning
  4. Flash Flood Warning
  5. Flash Flood Warning
  6. Severe Thunderstorm Warning
  7. Extreme Heat Warning
  8. Flood Warning
  9. Severe Thunderstorm Warning
  10. Flash Flood Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Warning
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Extreme Heat Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Flood Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Extreme Heat Warning
  23. Flood Warning
  24. Flash Flood Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Tornado Warning
  29. Tornado Warning
  30. Severe Thunderstorm Warning
  31. Severe Thunderstorm Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Freeze Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Flood Warning
  38. Severe Thunderstorm Warning
  39. Severe Thunderstorm Warning
  40. Severe Thunderstorm Warning
  41. Flood Warning
  42. Severe Thunderstorm Warning
  43. Severe Thunderstorm Warning
  44. Red Flag Warning
  45. Blizzard Warning
  46. High Wind Warning
  47. High Wind Warning
  48. Red Flag Warning
  49. Extreme Cold Warning
  50. High Wind Warning
  51. Severe Thunderstorm Warning
  52. Winter Storm Warning
  53. Winter Storm Warning
  54. Freeze Warning
  55. Freeze Warning
Every alert, most recent first
  1. Flood Warning
  2. Flood Warning
  3. Flood Warning
  4. Flash Flood Warning
  5. Flash Flood Warning
  6. Flood Watch
  7. Dense Fog Advisory
  8. Flood Watch
  9. Severe Thunderstorm Warning
  10. Extreme Heat Warning
  11. Heat Advisory
  12. Dense Fog Advisory
  13. Flood Warning
  14. Flood Watch
  15. Severe Thunderstorm Watch
  16. Severe Thunderstorm Warning
  17. Flash Flood Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Heat Advisory
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Severe Thunderstorm Warning
  24. Severe Thunderstorm Watch
  25. Dense Fog Advisory
  26. Extreme Heat Watch
  27. Extreme Heat Warning
  28. Severe Thunderstorm Warning
  29. Tornado Watch
  30. Heat Advisory
  31. Severe Thunderstorm Warning
  32. Flood Warning
  33. Flood Watch
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Flood Watch
  37. Extreme Heat Watch
  38. Extreme Heat Warning
  39. Flood Warning
  40. Flood Watch

The 40 most recent of 128.

From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each date links to the event at the IEM.

Nearby

The counties around Iowa County, with what is in force in each.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.