I live in Eastern Washington, and as you might imagine, it can be a bit boring. However, morel mushroom season is a delight every year, and I have my "secret areas" RM mentioned, where I know they grow.
I can't disclose THOSE places, but I can give you some tips if you are willing to travel to central/eastern WA to do some foraging.
The lower elevations(2000 ft), where I live the yellows have come and gone mostly, but the blackand gray morels are in season now, if you go a little higher, like Blewitt pass, Leavenworth area. Stephens pass is also a good spot, but those tend to come out later due to the cold weather.
I have heard this a myth, but from my own shrooming experience, i have found that the Morels have some sort of Symbiotic relationship with Alder, and Cottonwood trees. They tend to grow in the underbrush in areas that are moist, dead leaves etc but need to have adequate sunlight for the fruits to bloom. I've also occasionally found oyster mushrooms on or near cottonwoods, but none so far this year. I've been doing this for so long now it is relatively easy for me to spot a place that I assume Morels may be growing, and even that is a 50/50, gamble sometimes there are a couple here and there, other times i have found hundreds. If you stay at it for a few hours though, you are most likely going to find some. They also tend to grow like crazy in second year burn areas of Pine in the Wenatchee forest area.
From what the locals have been bringing to the Farmers Market, and from what I have already found, (3-4 lbs)this seems to be a good year for morels, probably due to the rain-sun-rain-sun pattern we've had in the past months.
If you can, make a trip to Cleelum/Roslyn,or Leavenworth, and ask some of the locals about morels, they will most likely give you tips, but will keep their lips sealed about specific spots. If you happen to find morels, again, Blewiit Pass has lots of ideal places to pull over with Alder, Cottonwood on the side of the road, always remember to pinch or cut the shrooms at the base of the stalk, or you will damage the delicate "root" system underground, and could kill the area for future years.
Beware of the False morels, they have more brainy looking heads that are not fully attached to the stem, and the inside of the mushroom has a cottony substance rather than a hollow center like true morels. Although I have eaten these in the past with no harm, it is not recommended as they contain a toxin that is said to produce some vertigo like effects and nausea in some people, as well as being carcinogenic.
Hope this helps!