Iowa alerts

Linn County, Iowa weather alerts

No watches, warnings or advisories are in force for Linn County.

Checked Mon, Sep 21, 2026, 2:11 PM CDT. Times are Central Daylight Time.

Linn County forecastLive radar here

Warnings on the map

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

Nothing is in force for Linn County right now. Its warnings come from the National Weather Service and appear here within a minute of being issued; every one of the past year is below.

The past year in Linn County

In the past year the National Weather Service issued 148 alerts for Linn County, including 37 severe thunderstorm warnings, 10 tornado warnings, 5 flash flood warnings and 3 freeze warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning37Sep 8, 2026
Tornado Warning10Sep 8, 2026
Flash Flood Warning5Sep 20, 2026
Freeze Warning3Apr 20, 2026
Winter Storm Warning3Dec 18, 2025
Blizzard Warning2Mar 15, 2026
Extreme Heat Warning2Jul 26, 2026
Flood Warning2Sep 20, 2026
High Wind Warning2Mar 15, 2026
Red Flag Warning2Mar 28, 2026
Extreme Cold Warning1Jan 22, 2026
Flood Watch12Sep 21, 2026
Severe Thunderstorm Watch12Aug 13, 2026
Tornado Watch9Jul 20, 2026
Extreme Heat Watch2Jul 26, 2026
High Wind Watch2Mar 15, 2026
Winter Storm Watch2Mar 15, 2026
Extreme Cold Watch1Jan 23, 2026
Fire Weather Watch1Feb 18, 2026
Dense Fog Advisory15Sep 17, 2026
Winter Weather Advisory9Mar 16, 2026
Wind Advisory6Mar 12, 2026
Cold Weather Advisory4Jan 25, 2026
Frost Advisory3May 7, 2026
Heat Advisory1Sep 1, 2026

Warnings issued

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

And 9 earlier warnings.

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

The 40 most recent of 148.

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 Linn 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.