Illinois alerts

Henry County, Illinois weather alerts

2 National Weather Service alerts are in force for Henry County: 2 flood warnings.

Checked Sun, Sep 20, 2026, 8:42 PM CDT. Times are Central Daylight Time.

Henry County forecastLive radar here

Warnings on the map

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

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

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

Alerts in force2

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

Flood Warning

Severe

Flood Warning issued September 20 at 7:47PM CDT until September 24 at 9:00AM CDT by NWS Quad Cities IA IL

Begins Until 4 days left

Areas Henry, IL; Rock Island, IL; Whiteside, IL

Full text

...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Whiteside, Rock Island and Henry IL Counties. ...The Flood Warning continues for the following rivers in Illinois... Rock River at Moline affecting Rock Island and Henry IL Counties. * WHAT...Minor flooding is forecast. * WHERE...Rock River near Joslin. * WHEN...From Monday morning to Thursday morning. * IMPACTS...At 13.7 feet, Water affects Barstow Road between Barstow and Osborn. * ADDITIONAL DETAILS... - At 6:45 PM CDT Sunday the stage was 8.6 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning to a crest of 13.4 feet Tuesday morning. It will then fall below flood stage early Thursday morning. - Flood stage is 12.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. The next statement will be issued by Monday evening.

NWS Quad Cities IA ILShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 7:47PM CDT until September 25 at 12:00AM CDT by NWS Quad Cities IA IL

Begins Until 4 days left

Areas Henry, IL; Rock Island, IL

Full text

...The Flood Warning is extended for the following rivers in Illinois... Rock River near Joslin affecting Whiteside, Rock Island and Henry IL Counties. ...The Flood Warning continues for the following rivers in Illinois... Rock River at Moline affecting Rock Island and Henry IL Counties. * WHAT...Moderate flooding is forecast. * WHERE...Rock River at Moline. * WHEN...From Monday evening to late Thursday night. * IMPACTS...At 13.2 feet, Water affects 60th Street south of John Deere Road in Moline and 56th Ave from Green Valley Park 48th St. Water is on Canal Road in Big Island. Smith's Island is affected by flood waters. * ADDITIONAL DETAILS... - At 7:30 PM CDT Sunday the stage was 9.9 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening to a crest of 13.2 feet Tuesday evening. It will then fall below flood stage Thursday afternoon. - Flood stage is 12.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. The next statement will be issued by Monday evening.

NWS Quad Cities IA ILShare this alert

The past year in Henry County

In the past year the National Weather Service issued 145 alerts for Henry County, including 34 severe thunderstorm warnings, 10 flood warnings, 6 tornado warnings and 5 flash flood warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning34Aug 21, 2026
Flood Warning10Sep 21, 2026
Tornado Warning6Aug 9, 2026
Flash Flood Warning5Sep 20, 2026
Extreme Heat Warning3Sep 2, 2026
Freeze Warning2Apr 20, 2026
High Wind Warning2Mar 15, 2026
Red Flag Warning2Feb 27, 2026
Blizzard Warning1Mar 15, 2026
Extreme Cold Warning1Jan 23, 2026
Winter Storm Warning1Nov 29, 2025
Flood Watch13Sep 21, 2026
Severe Thunderstorm Watch11Aug 21, 2026
Tornado Watch8Jun 11, 2026
Extreme Heat Watch2Jul 26, 2026
Fire Weather Watch2Feb 27, 2026
Winter Storm Watch2Mar 15, 2026
Extreme Cold Watch1Jan 23, 2026
Dense Fog Advisory14Sep 11, 2026
Wind Advisory10Apr 2, 2026
Winter Weather Advisory6Mar 16, 2026
Cold Weather Advisory4Jan 26, 2026
Frost Advisory3May 7, 2026
Heat Advisory2Aug 31, 2026

Warnings issued

  1. Flood Warning
  2. Flood Warning
  3. Flash Flood Warning
  4. Extreme Heat Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Tornado Warning
  13. Tornado Warning
  14. Severe Thunderstorm Warning
  15. Extreme Heat Warning
  16. Severe Thunderstorm Warning
  17. Extreme Heat Warning
  18. Flash Flood Warning
  19. Severe Thunderstorm Warning
  20. Flash Flood Warning
  21. Severe Thunderstorm Warning
  22. Flood Warning
  23. Severe Thunderstorm Warning
  24. Flood Warning
  25. Flood Warning
  26. Tornado Warning
  27. Severe Thunderstorm Warning
  28. Tornado Warning
  29. Severe Thunderstorm Warning
  30. Tornado Warning
  31. Flash Flood Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Warning
  36. Severe Thunderstorm Warning
  37. Severe Thunderstorm Warning
  38. Freeze Warning
  39. Flood Warning
  40. Severe Thunderstorm Warning
  41. Severe Thunderstorm Warning
  42. Severe Thunderstorm Warning
  43. Severe Thunderstorm Warning
  44. Severe Thunderstorm Warning
  45. Flood Warning
  46. Flood Warning
  47. Flood Warning
  48. Severe Thunderstorm Warning
  49. Severe Thunderstorm Warning
  50. Severe Thunderstorm Warning
  51. Severe Thunderstorm Warning
  52. Blizzard Warning
  53. High Wind Warning
  54. High Wind Warning
  55. Flash Flood Warning
  56. Severe Thunderstorm Warning
  57. Severe Thunderstorm Warning
  58. Severe Thunderstorm Warning
  59. Tornado Warning
  60. Severe Thunderstorm Warning

And 7 earlier warnings.

Every alert, most recent first
  1. Flood Warning
  2. Flood Watch
  3. Flood Warning
  4. Flood Watch
  5. Flash Flood Warning
  6. Flood Watch
  7. Flood Watch
  8. Dense Fog Advisory
  9. Extreme Heat Warning
  10. Heat Advisory
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Watch
  14. Severe Thunderstorm Warning
  15. Flood Watch
  16. Dense Fog Advisory
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Watch
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Watch
  23. Tornado Warning
  24. Tornado Warning
  25. Severe Thunderstorm Warning
  26. Severe Thunderstorm Watch
  27. Heat Advisory
  28. Dense Fog Advisory
  29. Extreme Heat Watch
  30. Extreme Heat Warning
  31. Severe Thunderstorm Watch
  32. Severe Thunderstorm Warning
  33. Flood Watch
  34. Severe Thunderstorm Watch
  35. Extreme Heat Warning
  36. Extreme Heat Watch
  37. Severe Thunderstorm Watch
  38. Flash Flood Warning
  39. Severe Thunderstorm Warning
  40. Flash Flood Warning

The 40 most recent of 145.

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 Henry 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.