Probably the worst, flow wise, that I have heard of was a Hood Canal creek that was surveyed weekly for chum. A whole series of weeks with zero live or dead. A bit of rain and the next survey had a couple hundred dead and no live. They waited till there was water then spawned and died. I have seen coho hold in really cold water (31-32 degrees) for close to two months before the thaw. Again it was hurry up, spawn, and die.

If we get a really large pink run coupled with high temps we may have massive die-offs as they deoxygenate the whole river. Pinks have done this in AK, Chinook at least once on the eastside.

There might not be too much problem with the Skagit, Puyallup, and Nisqually as they will have lots of cod glacial meltwater. The snow-melt driven streams will likely get awfully warm.

Lake WA will be a death trap in August for fish transiting from the locks to lake.