2437172213144454201072_Mason_County__WA_-_Resident_Mason_County_Emergency_Management2026-03-31T15:26:45-07:00ActualAlertTacoma Power & Mason County Emergency ManagementPublicIPAWSv1.0en-USSafetyPractice/Demo WarningExpectedSevereLikelySAMEDMO2026-03-31T18:26:45-07:00201072,Mason County, WA - Resident,Mason County Emergency ManagementCushman Dam Siren-Alert TESTBLOCKCHANNELCAPEXCHBLOCKCHANNELNWEMBLOCKCHANNELEASEAS-ORGCIVCMAMtextTacoma Power is testing their emergency alert system for Cushman Dam on 4-1-2026 at 1pm.CMAMlongtextThis is a test. Tacoma Power and Mason County Emergency Management have partnered to notify you that Tacoma Power will be testing their emergency siren and alert system for the Cushman Dam at 1:00 p.m. tomorrow, April 1, 2026. The siren portion of the test should last about 90 seconds. No action is required. 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