Nf Nooksack River below Cascade Creek near Glacier
Nf Nooksack River · Pacific NW · USGS gage 12205000
Coldwater (summer mean 10.3°C — prime coldwater).
Water
53°F
Flow
1,130 cfs
Air
76°F
Sky
99%
Predicted hatches · 2026-06-16
PredictedGreen DrakeDrunella spp.0.60
Predicted by conditions; no reports yet. water 11.8°C (53°F) sits in the prime band (11-15°C); peak season; watch midday, often cloudy.
flies: Green Drake Parachute #10-12, Cripple, Hares Ear #10
PredictedMidgeChironomidae0.35
water 11.8°C (53°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.