Wyoming alerts

Natrona County, Wyoming weather alerts

1 National Weather Service alert is in force for Natrona County: a flood watch.

Checked Sun, Sep 20, 2026, 5:41 PM MDT. Times are Mountain Daylight Time.

Natrona County forecastLive radar here

Warnings on the map

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

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

Flood Watch

Severe

Flood Watch issued September 20 at 5:38PM MDT until September 20 at 6:00PM MDT by NWS Riverton WY

Issued Until 18 min left

Areas Bighorn Mountains West, WY; Bighorn Mountains Southeast, WY; Northeast Johnson County, WY; Southeast Johnson County, WY

Full text

The Flood Watch will expire for a portion of north central Wyoming, including the following areas, Bighorn Mountains Southeast, Bighorn Mountains West, Northeast Johnson County and Southeast Johnson County. The flash flooding threat has ended. Therefore, the Flood Watch will expire at 6 PM MDT this evening.

NWS Riverton WYShare this alert

The past year in Natrona County

In the past year the National Weather Service issued 123 alerts for Natrona County, including 26 red flag warnings, 17 severe thunderstorm warnings, 10 high wind warnings and 6 freeze warnings.

ProductIssuedMost recent
Red Flag Warning26Sep 14, 2026
Severe Thunderstorm Warning17Sep 19, 2026
High Wind Warning10Apr 22, 2026
Freeze Warning6May 19, 2026
Winter Storm Warning4May 17, 2026
Extreme Heat Warning1Jul 11, 2026
Fire Weather Watch11Sep 14, 2026
High Wind Watch8Mar 14, 2026
Flood Watch4Sep 18, 2026
Winter Storm Watch4May 17, 2026
Freeze Watch3May 6, 2026
Severe Thunderstorm Watch2Jun 25, 2026
Extreme Heat Watch1Jul 11, 2026
Winter Weather Advisory16May 17, 2026
Flood Advisory7Aug 13, 2026
Heat Advisory2Aug 1, 2026
Dense Fog Advisory1Nov 20, 2025

Warnings issued

  1. Severe Thunderstorm Warning
  2. Severe Thunderstorm Warning
  3. Red Flag Warning
  4. Red Flag Warning
  5. Red Flag Warning
  6. Red Flag Warning
  7. Severe Thunderstorm 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. Extreme Heat Warning
  16. Severe Thunderstorm 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. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. Red Flag Warning
  31. Red Flag Warning
  32. Red Flag Warning
  33. Freeze Warning
  34. Freeze Warning
  35. Winter Storm Warning
  36. Freeze Warning
  37. High Wind Warning
  38. Red Flag Warning
  39. Red Flag Warning
  40. Freeze Warning
  41. Red Flag Warning
  42. Red Flag Warning
  43. Red Flag Warning
  44. Winter Storm Warning
  45. Red Flag Warning
  46. Red Flag Warning
  47. Red Flag Warning
  48. Red Flag Warning
  49. High Wind Warning
  50. High Wind Warning
  51. Red Flag Warning
  52. Red Flag Warning
  53. High Wind Warning
  54. Winter Storm Warning
  55. High Wind Warning
  56. Red Flag Warning
  57. High Wind Warning
  58. High Wind Warning
  59. High Wind Warning
  60. High Wind Warning

And 4 earlier warnings.

Every alert, most recent first
  1. Severe Thunderstorm Warning
  2. Severe Thunderstorm Warning
  3. Flood Watch
  4. Red Flag Warning
  5. Fire Weather Watch
  6. Red Flag Warning
  7. Red Flag Warning
  8. Fire Weather Watch
  9. Red Flag Warning
  10. Severe Thunderstorm Warning
  11. Flood Advisory
  12. Flood Advisory
  13. Red Flag Warning
  14. Red Flag Warning
  15. Red Flag Warning
  16. Red Flag Warning
  17. Red Flag Warning
  18. Red Flag Warning
  19. Fire Weather Watch
  20. Heat Advisory
  21. Heat Advisory
  22. Flood Advisory
  23. Flood Advisory
  24. Flood Advisory
  25. Flood Watch
  26. Flood Advisory
  27. Flood Watch
  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. Flood Advisory
  38. Severe Thunderstorm Warning
  39. Severe Thunderstorm Warning
  40. Severe Thunderstorm Warning

The 40 most recent of 123.

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 Natrona 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.