Big Timber Creek above Mouth At Leadore
Big Timber Creek · Rockies · USGS gage 13304050
Coldwater (summer mean 14.4°C — prime coldwater).
Water
54°F
Flow
3 cfs
Air
46°F
Sky
0%
Pressure
29.97 in
Wind
0 mph
Predicted hatches · 2026-08-04
PredictedMidgeChironomidae0.32
water 12.2°C (54°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.