Wisconsin alerts

Walworth County, Wisconsin weather alerts

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

Checked Sun, Sep 20, 2026, 4:59 PM CDT. Times are Central Daylight Time.

Walworth County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Walworth County, Wisconsin 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 Walworth 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 Walworth County

In the past year the National Weather Service issued 149 alerts for Walworth County, including 37 severe thunderstorm warnings, 14 tornado warnings, 6 flash flood warnings and 4 flood warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning37Aug 11, 2026
Tornado Warning14Jul 27, 2026
Flash Flood Warning6Aug 10, 2026
Flood Warning4Apr 17, 2026
Freeze Warning2May 2, 2026
Winter Storm Warning2Mar 15, 2026
Blizzard Warning1Mar 15, 2026
Extreme Cold Warning1Jan 23, 2026
Extreme Heat Warning1Jun 29, 2026
High Wind Warning1Mar 12, 2026
Severe Thunderstorm Watch14Aug 21, 2026
Tornado Watch5Jun 17, 2026
Flood Watch4Sep 19, 2026
Extreme Cold Watch2Jan 23, 2026
Winter Storm Watch2Mar 15, 2026
Extreme Heat Watch1Jun 29, 2026
Dense Fog Advisory14Aug 13, 2026
Winter Weather Advisory11Mar 16, 2026
Flood Advisory8Aug 10, 2026
Frost Advisory6May 11, 2026
Wind Advisory6May 12, 2026
Cold Weather Advisory4Jan 26, 2026
Heat Advisory3Jul 27, 2026

Warnings issued

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

And 9 earlier warnings.

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

The 40 most recent of 149.

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 Walworth 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.