Wyoming alerts

Teton County, Wyoming weather alerts

1 National Weather Service alert is in force for Teton County: a hydrologic outlook.

Checked Sun, Sep 20, 2026, 8:29 AM MDT. Times are Mountain Daylight Time.

Teton County forecastLive radar here

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Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

Alerts in force1

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

Hydrologic Outlook

Other

Hydrologic Outlook issued September 19 at 11:59AM MDT by NWS Riverton WY

Issued Until 30 min left

Areas Big Horn, WY; Fremont, WY; Hot Springs, WY; Johnson, WY; Natrona, WY; Park, WY; Sweetwater, WY; Teton, WY; Washakie, WY

Full text

ESFRIW Periods of showers and thunderstorms are expected across the northern half of Wyoming Saturday and Sunday as a wet weather system shifts east across the state. This weather system is funneling abundant tropical moisture into northern and eastern portions of the state with it's eastward progression. Given the high moisture content, many thunderstorms could feature heavy rainfall and possibly lead to localized flooding. Poor drainage areas, urban areas, and steep terrain will be the most susceptible locations for this isolated flooding. Many locations could see an additional 0.5" to 1.25" of rain through Sunday afternoon, with a majority of this rain falling quickly in thunderstorms. Remember, if you encounter a flooded roadway, turn around don't down!

NWS Riverton WYShare this alert

The past year in Teton County

In the past year the National Weather Service issued 65 alerts for Teton County, including 9 winter storm warnings, 4 severe thunderstorm warnings, 3 freeze warnings and 2 red flag warnings.

ProductIssuedMost recent
Winter Storm Warning9Apr 15, 2026
Severe Thunderstorm Warning4Jul 26, 2026
Freeze Warning3Sep 9, 2026
Red Flag Warning2Aug 11, 2026
Extreme Heat Warning1Jul 11, 2026
High Wind Warning1Dec 17, 2025
Winter Storm Watch9Apr 15, 2026
Flood Watch4Sep 18, 2026
Extreme Heat Watch1Jul 11, 2026
Freeze Watch1Sep 23, 2025
Severe Thunderstorm Watch1May 13, 2026
Winter Weather Advisory24Apr 22, 2026
Flood Advisory4Jul 22, 2026
Heat Advisory1Aug 1, 2026

Warnings issued

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

The 40 most recent of 65.

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 Teton 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.