Jason Harris
EF5
Some people will sleep like the dead. Note in this article one family wakes up at 3 AM during a false alarm, but this other fellow with the windows open does not. Having multiple tools seems reasonable. Individuals will differ, so why not err on the side of different approaches?
http://www.dailycamera.com/lafayett...hers-lafayette-tornado-sirens-mistakenly-went
http://www.dailycamera.com/lafayett...hers-lafayette-tornado-sirens-mistakenly-went