Montana alerts

Petroleum County, Montana weather alerts

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

Checked Sun, Sep 20, 2026, 10:32 AM MDT. Times are Mountain Daylight Time.

Petroleum County forecastLive radar here

Warnings on the map

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

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

Flood Watch

Severe

Flood Watch issued September 20 at 3:59AM MDT until September 20 at 6:00PM MDT by NWS Glasgow MT

Issued Until 7 hr 28 min left

Areas Petroleum, MT; Garfield, MT; Dawson, MT; Prairie, MT; Wibaux, MT

Full text

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of northeast Montana, including the following counties, Dawson, Garfield, Petroleum, Prairie and Wibaux. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Additional rain is expected today on saturated ground along and south of MT 200 between Winnett, Jordan and Glendive and south of I 94 between Glendive and Wibaux. Heavy rain is possible in any embedded thunderstorms that may occur. - http://www.weather.gov/safety/flood

What to do

You should monitor later 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 Glasgow MTShare this alert

The past year in Petroleum County

In the past year the National Weather Service issued 153 alerts for Petroleum County, including 24 severe thunderstorm warnings, 12 red flag warnings, 9 high wind warnings and 3 extreme heat warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning24Sep 7, 2026
Red Flag Warning12Sep 10, 2026
High Wind Warning9May 13, 2026
Extreme Heat Warning3Aug 1, 2026
Winter Storm Warning3Mar 13, 2026
Flash Flood Warning1Jul 14, 2026
Fire Weather Watch8Sep 10, 2026
High Wind Watch8May 13, 2026
Severe Thunderstorm Watch6Aug 23, 2026
Extreme Heat Watch3Aug 1, 2026
Flood Watch2Sep 19, 2026
Winter Storm Watch2Mar 13, 2026
Lake Wind Advisory63Sep 17, 2026
Winter Weather Advisory5Mar 9, 2026
Cold Weather Advisory2Jan 23, 2026
Heat Advisory2Jul 12, 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. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Red Flag Warning
  10. Red Flag Warning
  11. Red Flag Warning
  12. Extreme Heat Warning
  13. Red Flag Warning
  14. Severe Thunderstorm Warning
  15. Extreme Heat Warning
  16. Red Flag Warning
  17. Severe Thunderstorm Warning
  18. Flash Flood Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Severe Thunderstorm Warning
  23. Severe Thunderstorm Warning
  24. Red Flag Warning
  25. Extreme Heat Warning
  26. Severe Thunderstorm Warning
  27. Severe Thunderstorm Warning
  28. Severe Thunderstorm Warning
  29. Severe Thunderstorm Warning
  30. Severe Thunderstorm Warning
  31. Severe Thunderstorm Warning
  32. Severe Thunderstorm Warning
  33. Severe Thunderstorm Warning
  34. Severe Thunderstorm Warning
  35. High Wind Warning
  36. Red Flag Warning
  37. Red Flag Warning
  38. High Wind Warning
  39. Red Flag Warning
  40. Severe Thunderstorm Warning
  41. High Wind Warning
  42. Winter Storm Warning
  43. High Wind Warning
  44. Red Flag Warning
  45. High Wind Warning
  46. High Wind Warning
  47. High Wind Warning
  48. High Wind Warning
  49. Winter Storm Warning
  50. High Wind Warning
  51. Winter Storm Warning
  52. Red Flag Warning
Every alert, most recent first
  1. Flood Watch
  2. Lake Wind Advisory
  3. Lake Wind Advisory
  4. Fire Weather Watch
  5. Red Flag Warning
  6. Lake Wind Advisory
  7. Severe Thunderstorm Warning
  8. Lake Wind Advisory
  9. Lake Wind Advisory
  10. Lake Wind Advisory
  11. Lake Wind Advisory
  12. Severe Thunderstorm Warning
  13. Severe Thunderstorm Watch
  14. Severe Thunderstorm Warning
  15. Lake Wind Advisory
  16. Severe Thunderstorm Warning
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Lake Wind Advisory
  21. Lake Wind Advisory
  22. Fire Weather Watch
  23. Red Flag Warning
  24. Fire Weather Watch
  25. Red Flag Warning
  26. Lake Wind Advisory
  27. Lake Wind Advisory
  28. Lake Wind Advisory
  29. Fire Weather Watch
  30. Red Flag Warning
  31. Extreme Heat Watch
  32. Extreme Heat Warning
  33. Red Flag Warning
  34. Severe Thunderstorm Warning
  35. Severe Thunderstorm Watch
  36. Lake Wind Advisory
  37. Extreme Heat Warning
  38. Extreme Heat Watch
  39. Fire Weather Watch
  40. Red Flag Warning

The 40 most recent of 153.

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 Petroleum 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.