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Weather Alerts for Half Moon Bay, CA

San Mateo County, California

Half Moon Bay is located in San Mateo County, California. This page shows active weather alerts affecting Half Moon Bay issued by the National Weather Service.

NWS Forecast Office: Weather alerts for this area are issued by the National Weather Service MTR office.

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Active Alerts for Half Moon Bay

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Active Alert Map — California

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Weather Overview for Half Moon Bay

Half Moon Bay, California faces weather hazards shaped by its location in one of the world's most climatically diverse states. Depending on its region, threats may include wildfire, atmospheric river flooding, extreme heat, or coastal storms — all of which are monitored by the National Weather Service.

Common alert types for this area:

  • Fire Weather Warning
  • Flash Flood Warning
  • High Wind Warning
  • Red Flag Warning
  • Dense Fog Advisory

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