Fall Chinook Chatter Builds Near Columbia's Buoy 10

What's biting

What's next

With no buoy or gauge telemetry available this cycle, we can't point to a specific temperature or flow trend, but the seasonal pattern for mid-September on the lower Columbia is well established: this is typically the heart of the fall Chinook push, when migrating fish stack up in the tidal reaches near Buoy 10 and work upstream on the tide cycle. The IFish.net Fishing Reports thread describing 'HOT chinook action trolling solo' just north of the legal edge of the green line, in around 22 feet of water, is consistent with that pattern — anglers working structure near the shipping-channel edge as the tide turns. Take it as a promising signal rather than a confirmed bite report until it's corroborated by a shop or charter source.

Expect boat traffic to stay heavy in that stretch through the weekend. Multiple IFish.net threads this week mention gear lost overboard near Buoy 10 and at the mouth of the Lewis River, which tracks with a crowded, actively-fished area rather than a quiet one. If the pattern holds, look for the bite to keep building over the next several days as more fish push in on the tides, with early morning and the last couple hours of an incoming tide typically producing the most consistent trolling windows in that stretch.

Coho should start mixing in with the Chinook catch more noticeably over the next couple weeks as the fall run progresses — that's the typical sequence for this time of year on the Columbia, with Coho numbers building through late September and into October. No specific Coho reports came through in this batch of intel, so treat that as a seasonal expectation rather than a confirmed trend to plan a trip around just yet.

For sturgeon anglers, plan around whatever retention windows are currently open — Columbia River white sturgeon seasons are managed tightly and shift from year to year, so check current regulations before heading out rather than assuming prior-year dates still apply. No angler intel came through on sturgeon this cycle, which isn't unusual outside of specific announced season openers.

Bottom line for the next few days: expect a busy lower river, chatter-level confirmation of Chinook activity at Buoy 10, and a need to check back once harder data or shop/charter reports come through to firm up the picture.

Context

Mid-September sits squarely within the traditional fall Chinook run window on the Columbia, when the season's push of migrating fish moves through the lower river and concentrates anglers near well-known hotspots like Buoy 10 at the river mouth. The forum activity we're seeing this cycle — reports of gear lost overboard near Buoy 10 and at the mouth of the Lewis River, plus a direct mention of hot solo trolling action — is consistent with a lower river that's busy and actively fished right now, which tracks with what's typical for this point in the season rather than signaling anything unusual.

We don't have a comparative baseline in this batch of intel — no state agency creel counts, shop reports, or charter logs came through to say whether this year's run is tracking ahead of, behind, or in line with recent seasons. The available signal is limited to angler forum chatter, which by nature reflects individual trips rather than aggregate run strength, so we're being upfront that we can't characterize this season as early, late, or average relative to history.

What we can say with confidence is the general seasonal shape: fall Chinook typically dominates the Columbia's lower-river fishery through September, with Coho building in behind them as the month progresses, and white sturgeon fishing structured around whatever retention windows are open in a given year — sturgeon management on the Columbia has trended toward tighter, more conservative seasons in recent years, so anglers should confirm current rules rather than rely on memory of past seasons. No sturgeon-specific intel came through this cycle to compare against.