Preston, the "only two areas open" you describe only cover about 100 river miles. I live two miles from the river, and drive the length between Selah and the Tri-Cities about three times each week.
I talked with a couple people, one of which who knows the biologist for the river. Currently, there are a lot of fish in the lower river below Horn Rapids. The biologist expects them to be in the mid to upper sections in the next 7-14 days. The big questions are how dark are they, and will they bite?
Me, I'm going to drive 125 miles to catch fish someplace else.