South Dakota alerts

Walworth County, South Dakota weather alerts

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

Checked Sun, Sep 20, 2026, 1:54 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, South Dakota. 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, South Dakota 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 128 alerts for Walworth County, including 25 severe thunderstorm warnings, 7 red flag warnings, 5 high wind warnings and 3 winter storm warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning25Sep 5, 2026
Red Flag Warning7Sep 8, 2026
High Wind Warning5Mar 12, 2026
Winter Storm Warning3Apr 3, 2026
Blizzard Warning2Mar 15, 2026
Extreme Heat Warning2Jul 25, 2026
Extreme Cold Warning1Jan 22, 2026
Flood Warning1Aug 29, 2026
Freeze Warning1May 20, 2026
Severe Thunderstorm Watch10Aug 30, 2026
Fire Weather Watch4May 15, 2026
High Wind Watch4Mar 12, 2026
Tornado Watch2Jun 27, 2026
Winter Storm Watch2Apr 3, 2026
Extreme Cold Watch1Jan 22, 2026
Flood Watch1Jul 7, 2026
Dense Fog Advisory17Sep 19, 2026
Winter Weather Advisory15Apr 1, 2026
Wind Advisory13Sep 14, 2026
Heat Advisory5Jul 29, 2026
Cold Weather Advisory4Jan 26, 2026
Frost Advisory3May 19, 2026

Warnings issued

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