Smith River above Smith River Resv,near Belknap Sprngs,Or
Smith River · Pacific NW · USGS gage 14158790
Coldwater (summer mean 14.8°C — prime coldwater).
Water
52°F
Flow
4 cfs
Air
51°F
Sky
1%
Pressure
29.95 in
Wind
6 mph
Predicted hatches · 2026-09-15
PredictedBlue-Winged OliveBaetis spp.0.50
Predicted by conditions; no reports yet. water 11.0°C (52°F) sits in the prime band (6-11°C); shoulder of the season; 8 days sustained ≥4°C; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PredictedMidgeChironomidae0.42
Predicted by conditions; no reports yet. water 11.0°C (52°F) is cooling past 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.