Friday, January 27, 2023

It Is Only a Test: North Coast Residents Will Take Part in a Tsunami Warning Communications Test Next Week

The following is an announcement from the National Weather Service in Eureka, California:

Large Surf Pummeling the Mendocino County Coastline [Picture by Judy Valadao]

Del Norte, Humboldt, and Mendocino Counties

WHEN: Wednesday, March 23, 2022, between 11:00 a.m. & 12:00 Noon
WHERE: Del Norte, Humboldt, and Mendocino counties.
HOW: Interruptions of TV* and Radio Stations, and activation of NOAA Weather Radios and Outdoor Sirens. *Not all Cable and Satellite TV Stations may be able to participate
WHY: To test the Tsunami Warning System to ensure it works properly during a real tsunami emergency.

If you are watching television between 11:00 a.m. and 12:00 Noon on Wednesday morning, expect to see a crawler at the bottom of the screen indicating that a tsunami warning has been issued, and hear a voice indicating that it is only a test. If you don’t hear the TV audio, please remember that this is only a test. If you are listening to the radio, you will hear alerting tones followed by a voice announcing that the test is occurring. If you have a NOAA weather radio with the Public Alert feature, the radio will automatically turn on and you will hear the same message as broadcast on radios. In some areas, you may also hear the sounding of a tsunami siren, an airplane testing its public address system, or receive other communication tests in some local jurisdictions. The Wireless Emergency Alert (WEA) system that comes across smart phones will NOT be activated for this test.

Please help us by providing any feedback regarding this test by emailing:

When you hear or see the warning test on March 23 between 11:00 a.m. & 12:00 Noon:

  • You do NOT need to take any action
  • Do NOT call 911 or local authorities
  • Do NOT evacuate your home or business


PREPARE: Find out more about preparing for earthquakes, tsunamis or any other disasters on the North Coast at America’s PrepareAthon! ( the Great California Shakeout (, and The Tsunami Zone ( are also great places to get preparedness information for natural hazards.


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MendoFever Staff
MendoFever Staff
Editor's Note: Whenever an article's byline reads "MendoFever Staff", the contents of that article were not composed by any of our reporters. Types of writing that will be attributed to "MendoFever Staff" include press releases, letters to the editor, op-eds, obituaries— essentially writing that is not produced by a reporter.

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