Mckenzie River below Trail Br Dam near Belknap Springs
Mckenzie River · Pacific NW · USGS gage 14158850
Coldwater (summer mean 9.3°C — prime coldwater).
Water
49°F
Flow
621 cfs
Air
68°F
Sky
0%
Pressure
29.97 in
Wind
1 mph
Predicted hatches · 2026-07-31
PredictedMidgeChironomidae0.50
Predicted by conditions; no reports yet. water 9.7°C (49°F) sits in the prime band (1-10°C); shoulder of the season; 8 days sustained ≥0°C; watch midday, especially cold months.
flies: Zebra Midge #18-22, Griffith's Gnat, Disco Midge
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.