The study I was just reading says the water temp of 21.1 c Migration is delayed.
If the fish have started migration the water should not exceed 18.0c (64.4 F)
Temperatures of 22-24c totally eliminates salmonids from an area.
Bad times for sure. Im hoping for rain, Big time.
The river I live on (Skykomish) is flowing at 325 CFS.

The wallace is almost dry.

Real bad.