Hi Shining Delcatty. Welcome back to Pokemon!
There are several leagues in Western Washington. For a complete list check out
http://www.op.pokemon-tcg.com/league/locator/
First select United States as the country, then Washington as the state. It will give you all the Pokemon Leagues in Washington. (I've tried putting in a city and it doesn't seem to work.)
It looks like there are two in the Lakewood area: The Game Matrix on Wednesday nights and the Lakewood library on Saturday Mornings.
The next pre-release is mid to late August. I haven't heard a firm date yet, but I'm sure pokeplayer will be announcing something soon.