hawaii 12 years ago 0 Hawaii, Kauai, Maui, Oahu Waianae Shopping Center Outdoor Warning Siren To Be Tested By Staff Reports (Honolulu)– The City Department of Emergency Management in conjunction with Hawaii State Civil Defense will test an outdoor warning siren on Wednesday, June 20, 2012 from 8:30 a.m. to 1:00 p.m.