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Hatch predictions for 300+ US rivers — built from live water & weather, then confirmed against real fly-shop reports.

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Gore Creek At Mouth Near Minturn

Gore Creek · Rockies · USGS gage 09066510

Coldwater (summer mean 13.0°C — prime coldwater).

Water
58°F
Flow
17 cfs
Air
55°F
Sky
79%
Pressure
29.88 in
Wind
6 mph
Predicted hatches · 2026-09-15
PredictedSpotted / Summer CaddisHydropsyche spp.0.50
Predicted by conditions; no reports yet. water 14.3°C (58°F) sits in the prime band (14-19°C); shoulder of the season; 3 days sustained ≥12°C; watch evening, last hour of light.
flies: Elk Hair Caddis #14-16, Iris Caddis, X-Caddis

PREDICTED from the first-principles model only. Report-confirmed signal (fly-shop & forum reports) is the next milestone.