Wyoming alerts

Johnson County, Wyoming weather alerts

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

Checked Mon, Sep 21, 2026, 4:21 AM MDT. Times are Mountain Daylight Time.

Johnson County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Johnson County, Wyoming 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 Johnson 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 Johnson County

In the past year the National Weather Service issued 104 alerts for Johnson County, including 21 red flag warnings, 13 severe thunderstorm warnings, 8 high wind warnings and 6 freeze warnings.

ProductIssuedMost recent
Red Flag Warning21Sep 8, 2026
Severe Thunderstorm Warning13Aug 22, 2026
High Wind Warning8Jun 7, 2026
Freeze Warning6May 19, 2026
Winter Storm Warning3Apr 2, 2026
Extreme Heat Warning1Jul 11, 2026
Fire Weather Watch10Sep 3, 2026
Severe Thunderstorm Watch5Aug 18, 2026
Freeze Watch4May 6, 2026
Flood Watch3Sep 18, 2026
High Wind Watch3Mar 12, 2026
Winter Storm Watch3Apr 2, 2026
Extreme Heat Watch1Jul 11, 2026
Winter Weather Advisory17May 17, 2026
Flood Advisory4Aug 22, 2026
Heat Advisory2Aug 1, 2026

Warnings issued

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

The 40 most recent of 104.

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 Johnson 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.