Red Butte Creek At Fort Douglas, Near Slc
Red Butte Creek · Rockies · USGS gage 10172200
Coldwater (summer mean 13.6°C — prime coldwater; very low flow (1.1 cfs) — small/seasonal).
Water
47°F
Flow
1 cfs
Air
49°F
Sky
100%
Pressure
29.81 in
Wind
11 mph
Predicted hatches · 2026-11-01
PredictedBlue-Winged OliveBaetis spp.0.57
Predicted by conditions; no reports yet. water 8.3°C (47°F) sits in the prime band (6-11°C); shoulder of the season; 8 days sustained ≥4°C; overcast skies favor it; watch midday, especially overcast afternoons.
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
PredictedMidgeChironomidae0.50
Predicted by conditions; no reports yet. water 8.3°C (47°F) sits in 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.