A civil authority has issued A REQUIRED WEEKLY TEST for the following counties or areas: Snohomish, WA; at 2:42 AM on DEC 6, 2024 Effective until 3:12 AM. Message from DON/JKZ. This is a test, only a test, of the Emergency Alert System, from Snohomish County 911. Had this been an actual alert, this system would bring you important information. No action is needed. This is only a test.