Illinois alerts

Whiteside County, Illinois weather alerts

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

Checked Sun, Sep 20, 2026, 3:29 PM CDT. Times are Central Daylight Time.

Whiteside County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Whiteside 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 Whiteside 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 force1

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

Flood Warning

Severe

Flood Warning issued September 20 at 9:23AM CDT until September 24 at 2:00AM CDT by NWS Quad Cities IA IL

Begins Until 3 days left

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

Full text

...The National Weather Service in Quad Cities has issued a Flood Warning for the following rivers in Illinois... Rock River near Joslin affecting Rock Island, Whiteside and Henry IL Counties. Rock River at Moline affecting Rock Island and Henry IL Counties. .Additional rainfall from today through Monday night is expected to be considerably lighter than what fell Thursday through Saturday night. This helps provide higher confidence in these river forecasts. ...REPLACES RIVER FLOOD WATCH... * WHAT...Minor flooding is forecast. * WHERE...Rock River near Joslin. * WHEN...From Monday afternoon to late Wednesday night. * IMPACTS...At 13.0 feet, Flooding of unprotected agricultural land occurs. Water also affects Lundeens Landing Campground. * ADDITIONAL DETAILS... - At 8:45 AM CDT Sunday the stage was 7.3 feet and rising. - Forecast...The river is expected to rise above flood stage early Monday afternoon to a crest of 13.3 feet Tuesday afternoon. It will then fall below flood stage Wednesday 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. 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 Whiteside County

In the past year the National Weather Service issued 128 alerts for Whiteside County, including 32 severe thunderstorm warnings, 6 flood warnings, 2 extreme heat warnings and 2 freeze warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning32Sep 20, 2026
Flood Warning6Sep 21, 2026
Extreme Heat Warning2Jul 26, 2026
Freeze Warning2Apr 20, 2026
High Wind Warning2Mar 15, 2026
Red Flag Warning2Feb 27, 2026
Tornado Warning2Aug 11, 2026
Winter Storm Warning2Dec 6, 2025
Blizzard Warning1Mar 15, 2026
Extreme Cold Warning1Jan 23, 2026
Flash Flood Warning1Sep 20, 2026
Snow Squall Warning1Jan 21, 2026
Flood Watch12Sep 21, 2026
Severe Thunderstorm Watch11Aug 21, 2026
Tornado Watch7Jun 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 10, 2026
Wind Advisory10Apr 2, 2026
Cold Weather Advisory4Jan 26, 2026
Winter Weather Advisory4Mar 16, 2026
Frost Advisory3May 7, 2026
Heat Advisory2Sep 1, 2026

Warnings issued

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