Horse Creek Near Mckenzie Bridge
Horse Creek · Pacific NW · USGS gage 14159100
Coldwater (summer mean 11.8°C — prime coldwater).
Water
57°F
Flow
245 cfs
Air
56°F
Sky
2%
Pressure
29.95 in
Wind
3 mph
Predicted hatches · 2026-09-15
PredictedSpotted / Summer CaddisHydropsyche spp.0.42
Predicted by conditions; no reports yet. water 13.7°C (57°F) is warming toward the prime band (14-19°C); shoulder of the season; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis
PredictedMidgeChironomidae0.19
water 13.7°C (57°F) is cooling past the prime band (1-10°C); shoulder of the season; 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.