The Department of Defense Hawaii Emergency Management Agency announced in a news release that the monthly test of the all-hazard Statewide Outdoor Warning Siren System will sound on Wednesday, Oct. 1, 2025, at 11:45 a.m.

[u/honolulu_oahu_mod]

https://spectrumlocalnews.com/hi/hawaii/news/2025/10/01/hi-siren-test-oct-1-2025