I've been googling around and haven't found it yet, but somewhere there's an old photo of Gig Harbor frozen completely over. People out walking on the ice. Maybe back in the 1920's.
It basically never happens, but it would sure be neat to see. It's got to be really cold for a really long time before the Sound starts to get any ice in it.
I simply cannot imagine that.
I've been looking for the picture too, without success.