HONOLULU (KHON2) — The City will conduct siren testing in the Manoa area on Friday, April 16.

The tests are part of the State of Hawaii’s ongoing Outdoor Warning Siren Modernization Program.

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Friday’s siren testing will be conducted in Woodlawn-Upper Mānoa and Nuuanu Valley from 9 a.m. to 3 p.m.

Residents nearby may hear the siren sound for 30-second to three-minute intervals during the  identified timeframe.  Testing will include short blasts known as “burps.”

During the tests, Emergency Management officials and technicians will be checking the  functionality of the siren.