Welcome to Fred's and welcome to the PNW! There is always the annual late Spring GTG at Jorry's in Lake Steven's WA! There is also the late Aug west fest! And usually there are 1 or 2 more each year thrown by active regional members. I wish I wasn't in a crummy apt or I'd host one myself. AFAIK, there aren't any GTG's scheduled yet!
I'm not aware of scheduled meetings that frequent in the TDI community. Don't see a reason why it *wouldn't* work though! Usually people post up in the west coast regional section for local stuff going on.