Ruby Creek Below Panther Creek Near Newhalem
Ruby Creek · Pacific NW · USGS gage 12173500
Coldwater (summer mean 11.9°C — prime coldwater).
Water
51°F
Flow
1,280 cfs
Air
77°F
Sky
100%
Predicted hatches · 2026-06-16
PredictedMidgeChironomidae0.46
Predicted by conditions; no reports yet. water 10.5°C (51°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
PredictedGreen DrakeDrunella spp.0.30
water 10.5°C (51°F) is warming toward the prime band (11-15°C); peak season; watch midday, often cloudy.
flies: Green Drake Parachute #10-12, Cripple, Hares Ear #10
PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.