Monthly Outdoor Siren Warning System to be tested Tuesday

The monthly test of the Outdoor Siren Warning System and live audio broadcast in conjunction with the Hawaii State Civil Defense will be conducted Tuesday.

The test will begin at 11:45 a.m. For the purpose of this test, you will hear a 45-second steady tone on all sirens.

When you hear the steady tone in circumstances other than a test, turn to any radio or television station for essential emergency information and instructions.

During an actual emergency these broadcasts will be heard at frequent intervals and may become continuous if need be.

In addition, residents in areas surrounding Campbell Industrial Park, Honokai Hale, Makakilo, Kapolei Regional Park, Kapolei Golf Course, and the Coast Guard Station at Kalaeloa may also hear a “whooping” tone following the siren test.

This “whooping” tone is a test of the Hazardous Materials (HAZMAT) incident outdoor siren warning group that will be activated in the event of a HAZMAT incident.

There is an Adopt-A-Siren smart phone app now available to allow users to adopt a tsunami siren in their neighborhood.

Click here for more information.

They will take responsibility for the siren by checking to ensure it functions propely and report on the status of the siren to the city.

The application also allows users to name their siren and receive an email notification alerting them when the siren will be tested.

If the siren in your community does not sound or does not operate properly please call the Department of Emergency Management at 723-8960 to report it.

You can also email the department at

With more than 170 outdoor warning sirens on Oahu we appreciate the public’s assistance in identifying problem units.

You can help us to safeguard our Outdoor Siren Warning System. Please report any acts of vandalism, damages, or missing sirens or components to the Department of Emergency Management at 723-8960.

Any suspicious activity should be reported immediately to the Honolulu Police Department by calling 911.

Residents now have the option of reporting malfunctioning or vandalized sirens on-line.

Click here to visit the City’s Siren Trouble Report page and to file your report as well as upload pictures.

Remember, important emergency information including evacuation maps can be found in the Hawaiian Telecom and Paradise Pages telephone directories.

In addition all Oahu residents are encouraged to sign-up to receive emergency email and cell phone text messages from the Board of Water Supply, Department of Emergency Management and the Honolulu Police Department by signing up with NIXLE.

Standard text messaging rates may apply depending on your wireless carrier and plan.

The Department of Emergency Management also encourages our residents to have multiple methods of receiving emergency information. These methods include Nixle email and cell phone text messaging, accessing Emergency Alert System (EAS) messages broadcast over TV and radio and having a NOAA weather radio with Specific Area Message Encoding (SAME).

NOAA weather radios can be purchased at most department or electronics stores as well as online.

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