California alerts

Glenn County, California weather alerts

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

Checked Sun, Sep 20, 2026, 12:42 PM PDT. Times are Pacific Daylight Time.

Glenn County forecastLive radar here

Warnings on the map

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

Every watch, warning and advisory the National Weather Service has in force over Glenn County, California Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

Nothing is in force for Glenn 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 Glenn County

In the past year the National Weather Service issued 29 alerts for Glenn County, including 8 severe thunderstorm warnings, 3 red flag warnings and 2 flood warnings.

ProductIssuedMost recent
Severe Thunderstorm Warning8Apr 21, 2026
Red Flag Warning3Sep 12, 2026
Flood Warning2Feb 25, 2026
Fire Weather Watch3Sep 12, 2026
Flood Advisory6Apr 21, 2026
Heat Advisory5Sep 9, 2026
Wind Advisory2May 16, 2026

Warnings issued

  1. Red Flag Warning
  2. Red Flag Warning
  3. Red Flag Warning
  4. Severe Thunderstorm Warning
  5. Severe Thunderstorm Warning
  6. Severe Thunderstorm Warning
  7. Severe Thunderstorm Warning
  8. Severe Thunderstorm Warning
  9. Severe Thunderstorm Warning
  10. Severe Thunderstorm Warning
  11. Severe Thunderstorm Warning
  12. Flood Warning
  13. Flood Warning
Every alert, most recent first
  1. Red Flag Warning
  2. Fire Weather Watch
  3. Heat Advisory
  4. Heat Advisory
  5. Heat Advisory
  6. Heat Advisory
  7. Fire Weather Watch
  8. Red Flag Warning
  9. Wind Advisory
  10. Red Flag Warning
  11. Fire Weather Watch
  12. Heat Advisory
  13. Flood Advisory
  14. Severe Thunderstorm Warning
  15. Severe Thunderstorm Warning
  16. Wind Advisory
  17. Severe Thunderstorm Warning
  18. Severe Thunderstorm Warning
  19. Severe Thunderstorm Warning
  20. Severe Thunderstorm Warning
  21. Severe Thunderstorm Warning
  22. Flood Advisory
  23. Severe Thunderstorm Warning
  24. Flood Warning
  25. Flood Warning
  26. Flood Advisory
  27. Flood Advisory
  28. Flood Advisory
  29. Flood Advisory

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 Glenn 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.