Wyoming alerts

Sheridan County, Wyoming weather alerts

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

Checked Sun, Sep 20, 2026, 1:00 PM MDT. Times are Mountain Daylight Time.

Sheridan County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Sheridan 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 Sheridan 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 Sheridan County, worst first, with its full text.

Flood Watch

Severe

Flood Watch issued September 20 at 4:32AM MDT until September 20 at 6:00PM MDT by NWS Billings MT

Issued Until 5 hr left

Areas Musselshell, MT; Treasure, MT; Northern Rosebud, MT; Custer, MT; Fallon, MT; Powder River, MT; Carter, MT; Northern Big Horn, MT; Southern Rosebud, MT; Southern Big Horn, MT; Bighorn Canyon, MT; Pryor/Northern Bighorn Mountains, MT; Northeastern Yellowstone, MT; Southwestern Yellowstone, MT; Northeast Bighorn Mountains, WY; Sheridan Foothills, WY

Full text

Showers are turning light and tapering off along the western foothills, but healthier showers will continue over central and eastern portions of the forecast area today. The risk of flooding continues. * WHAT...Flooding caused by excessive rainfall is possible, along with flash flooding over recent burn scars. * WHERE...Southeast Montana and Sheridan County Wyoming. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of creeks and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. The risk of flooding will diminish late this afternoon and evening as showers taper off. * ADDITIONAL DETAILS... - The heaviest rainfall is slowly shifting eastward to southeast Montana and northeast Wyoming. - The Elk and McGhee-Remington burn scars are particularly vulnerable to flash flooding and debris flows. Any other burn scars from this summer will have elevated flash flood potential as well. - http://www.weather.gov/safety/flood

What to do

Monitor the latest forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

NWS Billings MTShare this alert

The past year in Sheridan County

In the past year the National Weather Service issued 96 alerts for Sheridan County, including 19 severe thunderstorm warnings, 7 high wind warnings, 7 red flag warnings and 6 flash flood warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning19Jul 19, 2026
High Wind Warning7Mar 12, 2026
Red Flag Warning7Sep 4, 2026
Flash Flood Warning6Jul 29, 2026
Extreme Heat Warning3Aug 1, 2026
Winter Storm Warning2Apr 2, 2026
High Wind Watch6Mar 12, 2026
Fire Weather Watch5Sep 4, 2026
Severe Thunderstorm Watch5Aug 18, 2026
Extreme Heat Watch3Aug 1, 2026
Flood Watch3Sep 18, 2026
Winter Storm Watch3Apr 2, 2026
Flash Flood Watch1May 30, 2026
Winter Weather Advisory23May 21, 2026
Flood Advisory2Jul 22, 2026
Heat Advisory1Jul 25, 2026

Warnings issued

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

The 40 most recent of 96.

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 Sheridan 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.