California alerts

San Bernardino County, California weather alerts

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

Checked Sun, Sep 20, 2026, 7:10 AM PDT. Times are Pacific Daylight Time.

San Bernardino County forecastLive radar here

Radar

Reflectivity now over San Bernardino County, California. 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 Bernardino 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 Bernardino County

In the past year the National Weather Service issued 263 alerts for San Bernardino County, including 29 flash flood warnings, 23 severe thunderstorm warnings, 14 extreme heat warnings and 4 high wind warnings.

ProductIssuedMost recent
Flash Flood Warning29Sep 16, 2026
Severe Thunderstorm Warning23Sep 16, 2026
Extreme Heat Warning14Sep 10, 2026
High Wind Warning4May 17, 2026
Flood Warning3Aug 11, 2026
Freeze Warning3Jan 10, 2026
Red Flag Warning3Jun 26, 2026
Winter Storm Warning2Feb 16, 2026
Dust Storm Warning1May 17, 2026
Flood Watch14Dec 31, 2025
Extreme Heat Watch10Aug 25, 2026
High Wind Watch5May 17, 2026
Winter Storm Watch2Feb 16, 2026
Fire Weather Watch1Jun 26, 2026
Flash Flood Watch1Oct 14, 2025
Flood Advisory72Sep 8, 2026
Wind Advisory54Jun 26, 2026
Heat Advisory12Sep 11, 2026
Lake Wind Advisory4Jun 26, 2026
Dense Fog Advisory3Jan 21, 2026
Winter Weather Advisory3Feb 19, 2026

Warnings issued

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

And 22 earlier warnings.

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

The 40 most recent of 263.

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 Bernardino 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.