Reasons for optimism: This year's return is from the only strong run cycle left in the Lake Washington system. Wild reproduction was supplemented with high hatchery output.

Reasons for pessimism: Coho, chum, and steelhead returns have been lower than expected this year. Poor ocean survival may impact sockeye returns also.

This info came from Issaquah Hatchery personnel. I didn't ask for numbers; they'd be the first to admit such guesses are unreliable.