I think you'll find that what meteorologists call is the semi-permanent low in the Gulf of Alaska/North Pacific. It wobbles back & forth but most of the time it's there in some type of fashion. I'm a bit of weather geek, not like Dry-Shirt - I'm not worthy of that title, but I've been looking at weather since being a boy. Even before I started sailing. That low manufactures our weather for us and it's never dull.Amazing. That's a hell of a system in the North Pacific.
That site is a perfect thing for me.