To a point, that's true. However it's better to think of a HF radio and antenna as a system, rather than individual components. I no of almost no broadcasts directed to the Pacific NW - there used to be a few that beamed to the West Coast, but I kinda doubt they're doing that much these days
Using HF gear in a NSF or nursing home would be an exercise in futility. Such a facility would be awash in equipment that would send all sorts of hash, and I doubt any indoor restricted system would hear much of anything.
Unfortunately you have a geo restriction of sorts. If the Cascades are nearby, you're going to have issues with that, as signals can be blocked by them. I've traveled a great deal in the Pacific NW and have talked with folks out there.
Getting antenna - any antenna - outside is going to perform a lot better than indoors.
With all that out of the way, let's get started...
Yes the Executive is a nice portable. You can find reviews of this and many other radios using the links found here;
wiki.radioreference.com
As for antennas - well I've heard of several folks mating the el cheapo Chinese MLA30 plus to portables and it seems to work for them. I'm not a fan of wideband amps (like this uses), but I'll let you be the judge. You can read about these antennas via links found here
wiki.radioreference.com
You will need to have some understanding about how HF propagation works. This is a fair article to get you started on that...
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
www.arrl.org
Understanding what areas are in daylight and darkness is critical for knowing what areas of the world you might hear. We have a few such maps linked here...
wiki.radioreference.com
And finally, don't overlook the use of web radios...most are free and are quite literally all over the globe
wiki.radioreference.com
Mike