California alerts

Lassen County, California weather alerts

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

Checked Sat, Sep 26, 2026, 2:15 AM PDT. Times are Pacific Daylight Time.

Lassen County forecastLive radar here

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Lassen 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 Lassen 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 Lassen 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 Lassen County

In the past year the National Weather Service issued 66 alerts for Lassen County, including 9 red flag warnings, 3 winter storm warnings, 2 severe thunderstorm warnings and 1 freeze warning.

ProductIssuedMost recent
Red Flag Warning9Sep 12, 2026
Winter Storm Warning3Apr 21, 2026
Severe Thunderstorm Warning2Jun 19, 2026
Freeze Warning1Apr 16, 2026
High Wind Warning1Apr 1, 2026
Fire Weather Watch9Sep 12, 2026
Winter Storm Watch5Apr 21, 2026
Flood Watch3Jan 3, 2026
Extreme Heat Watch1Aug 6, 2026
Freeze Watch1Apr 16, 2026
High Wind Watch1Apr 1, 2026
Lake Wind Advisory12Sep 25, 2026
Wind Advisory7Sep 12, 2026
Winter Weather Advisory6Apr 11, 2026
Flood Advisory3Feb 24, 2026
Heat Advisory2Aug 7, 2026

Warnings issued

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

The 40 most recent of 66.

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 links to the alert's own page, with its text, map, radar and sounding.

Every alert in Lassen County since 1986

Nearby

The counties around Lassen 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.

Follow these alerts

Alerts for Lassen County in your reader or calendar.

The alerts on this page as a feed, updated every minute, for a feed reader or an app that reads Atom or RSS, and as a calendar where each alert runs from when it takes effect to when it ends. A feed or a calendar is not a warning siren: for warnings, keep a weather radio or your phone's emergency alerts on.

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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.