Not really any natural disasters.
We now have smoke season in the PNW. It gets really bad, and last for like a week or 2. I think since like 2018 we have been getting them. Then again, I live in Seattle, and Spokane is a lot further from the mountains.
In Spokane smoke season is just as bad if not worse, it’s a lot dryer here. I have family in the PNW so I visit frequently, and grew up there, so I’m aware of both climates and forest fire season. I’m not sure how mountains are relevant, but in Spokane we’re very close to large forests such as the Colville National Forest, and the Idaho Panhandle National Forest, in addition to forests further north, not to mention brush fires. One last year (called the Gray Fire) burnt down 259 structures and 10,085 acres, according to the fire’s Wikipedia page.
Tl;dr: I’m very aware of fire season, but I generally consider it a sad and unfortunate inconvenience, not a common natural disaster, though in instances like the Gray Fire, it does happen.