I think some smaller streams will nearly go dry, or sub-surface, in their lower reaches. Chinook will be denied access to natal streams in some cases. Summer-fall chinook in rivers like the Stilly may experience a high pre-spawning mortality (some managers are already making plans to salvage fish before this happens if safe holding areas can be found or arranged). Juvenile coho, steelhead, and cutthroat populations are going to crash to lows, possibly record lows.

Pink salmon will spawn in chinook redds. Then more pinks will spawn on the pink redds. The Puget Sound pink population should drop to near the levels typical before the big upswing of the past decade.

The coho run could be late, but peak spawning in December should still happen. No significant fall rains until Nov, with one or two high flow events in Nov-Dec. Low water summer of 2016, but not nearly as low as 2015, so the stream rearing obligates aren't going extinct. But they're sure going to have a couple of really bad years. Do stock up on coho this year; there won't be many harvestable the following two years.

I hope someone dredges this thread up next year to see how the predictions match up with what happens.