Utah alerts

San Juan County, Utah weather alerts

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

Checked Sun, Sep 20, 2026, 6:18 AM MDT. Times are Mountain Daylight Time.

San Juan County forecastLive radar here

Radar

Reflectivity now over San Juan County, Utah. Open it to see warnings and watches on the map.

Open the live radar with warnings and watches

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

Alerts in force

Nothing is in force for San Juan 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 San Juan County

In the past year the National Weather Service issued 155 alerts for San Juan County, including 33 flash flood warnings, 31 red flag warnings, 17 severe thunderstorm warnings and 7 extreme heat warnings.

ProductIssuedMost recent
Flash Flood Warning33Sep 16, 2026
Red Flag Warning31Aug 3, 2026
Severe Thunderstorm Warning17Sep 15, 2026
Extreme Heat Warning7Aug 6, 2026
Freeze Warning3Apr 17, 2026
Fire Weather Watch20Jul 2, 2026
Flood Watch11Sep 16, 2026
Extreme Heat Watch3Jul 31, 2026
Freeze Watch3Apr 17, 2026
Wind Advisory8Jun 28, 2026
Winter Weather Advisory7Feb 19, 2026
Flood Advisory6Jul 28, 2026
Heat Advisory5Aug 9, 2026
Dense Fog Advisory1Nov 20, 2025

Warnings issued

  1. Flash Flood Warning
  2. Flash Flood Warning
  3. Severe Thunderstorm Warning
  4. Flash Flood Warning
  5. Flash Flood Warning
  6. Severe Thunderstorm Warning
  7. Flash Flood Warning
  8. Flash Flood Warning
  9. Severe Thunderstorm Warning
  10. Flash Flood Warning
  11. Severe Thunderstorm Warning
  12. Severe Thunderstorm Warning
  13. Flash Flood Warning
  14. Flash Flood Warning
  15. Flash Flood Warning
  16. Flash Flood Warning
  17. Extreme Heat Warning
  18. Red Flag Warning
  19. Extreme Heat Warning
  20. Red Flag Warning
  21. Extreme Heat Warning
  22. Extreme Heat Warning
  23. Flash Flood Warning
  24. Flash Flood Warning
  25. Flash Flood Warning
  26. Flash Flood Warning
  27. Flash Flood Warning
  28. Extreme Heat Warning
  29. Flash Flood Warning
  30. Flash Flood Warning
  31. Flash Flood Warning
  32. Flash Flood Warning
  33. Flash Flood Warning
  34. Flash Flood Warning
  35. Flash Flood Warning
  36. Flash Flood Warning
  37. Flash Flood Warning
  38. Flash Flood Warning
  39. Severe Thunderstorm Warning
  40. Severe Thunderstorm Warning
  41. Severe Thunderstorm Warning
  42. Severe Thunderstorm Warning
  43. Severe Thunderstorm Warning
  44. Flash Flood Warning
  45. Flash Flood Warning
  46. Flash Flood Warning
  47. Flash Flood Warning
  48. Flash Flood Warning
  49. Flash Flood Warning
  50. Flash Flood Warning
  51. Extreme Heat Warning
  52. Extreme Heat Warning
  53. Red Flag Warning
  54. Red Flag Warning
  55. Red Flag Warning
  56. Red Flag Warning
  57. Red Flag Warning
  58. Red Flag Warning
  59. Red Flag Warning
  60. Red Flag Warning

And 31 earlier warnings.

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

The 40 most recent of 155.

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 San Juan 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.