September 29, 2011 at 3:27 pm
#735595
WMO
Participant
What time do you hear it? or is it random?
I live at Duwamish Head, and have not heard what you describe, and I am up at 3am to go to work. The one sound that does go off is the fog horn on the Duwamish Head light, just off the Anchor Park. Maybe that is what you are hearing, it was going for about 2 hours last night.