Post Flip-Flop: The Best Weeks of the Year Start Now
Flip-flop is behind us and the river has settled into its fall shape. The canyon is running right around 1,780 cfs at the Umtanum gage — a friendly, wadeable-in-places flow that concentrates fish into obvious water and makes for easy rowing. If you have been waiting for the Yakima to get good, this is the window. From here through late October is the stretch most guides would pick if they only got to fish six weeks a year.
Mornings are cold and slow; there is no reason to be on the water at dawn right now. Things wake up mid-morning as the sun hits the water, and the best hours run from roughly 11 to 4. Expect the fall mix: hoppers still drawing eats on warm afternoons along the grassy banks, blue-winged olives showing on the grey overcast days, and October caddis starting to appear in the canyon as the month goes on. Fish are feeding hard ahead of winter and they are noticeably less picky than they were in August.
| Section | Flow | Clarity | Rating |
|---|---|---|---|
| Canyon (Umtanum–Roza) | 1,780 cfs | Clear | Excellent |
| Upper (Cle Elum–Teanaway) | Post flip-flop — low | Clear | Good |
| Farmlands | Fishing well | Clear | Good |
What to have tied on: a tan or pink foam hopper in #8–10 with a beadhead dropper 18–24 inches below, BWO parachutes and comparaduns in #16–18 for the olive days, an October caddis pupa swung through the tailouts, and a dark streamer for the last hour if the dry fishing goes quiet.
Flow figure from the USGS gage at Umtanum, September 14, 2026. Conditions change fast this time of year — get in touch for the latest before your trip.