California alerts

Merced County, California weather alerts

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

Checked Mon, Sep 21, 2026, 1:52 AM PDT. Times are Pacific Daylight Time.

Merced County forecastLive radar here

Warnings on the map

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

In the past year the National Weather Service issued 112 alerts for Merced County, including 5 severe thunderstorm warnings, 4 freeze warnings, 2 red flag warnings and 1 extreme heat warning.

ProductIssuedMost recent
Severe Thunderstorm Warning5Apr 21, 2026
Freeze Warning4Feb 19, 2026
Red Flag Warning2May 16, 2026
Extreme Heat Warning1Aug 8, 2026
Flood Watch4Jan 2, 2026
Fire Weather Watch1May 16, 2026
Freeze Watch1Feb 19, 2026
High Wind Watch1Dec 23, 2025
Dense Fog Advisory52Feb 27, 2026
Lake Wind Advisory19Sep 15, 2026
Flood Advisory10Jan 4, 2026
Wind Advisory7Sep 12, 2026
Heat Advisory5Sep 9, 2026

Warnings issued

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

The 40 most recent of 112.

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 Merced 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.