Columbia migration counts hit record low as fall turn begins

What's next

The main signal over the next two to three days is the first fall rain. Typically, a front that soaks the Cascade and Olympic foothills lifts tributary flows and can cloud the water for a few days, which pushes fish toward slower edges, seams and eddies. Check the WDFW fishing and stocking reports before you head out, since they publish creel and catch data statewide.

The Last Quarter moon brings neap tides, which typically means slower currents on tidally influenced lower-river reaches. That makes the lower Columbia and Puget Sound rivers worth planning around for a mid-week window, with the weekend outlook to be confirmed on the local forecast.

Context

Early October sits in the seasonal transition across Western Washington, when daylight shortens, water cools and fall rains begin to lift river levels after the summer low. A record-small migration is an outlier against that typical pattern, so this month may look different from past Octobers. Keep expectations modest and focus on the days when the water and weather line up.