Mongaup River Below Swinging Bridge Reservoir
Mongaup River · Northeast · USGS gage 01433005
Trout (marginal) (summer mean 19.7°C — trout, warm in summer).
Water
53°F
Flow
132 cfs
Air
58°F
Sky
0%
Predicted hatches · 2026-06-16
PredictedGreen DrakeDrunella spp.1.00
Predicted by conditions; no reports yet. water 11.9°C (53°F) sits in the prime band (11-15°C); peak season; 8 days sustained ≥10°C; watch midday, often cloudy.
flies: Green Drake Parachute #10-12, Cripple, Hares Ear #10
PredictedMidgeChironomidae0.34
water 11.9°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.