Nb Au Sable River At Kelloggs Br Near Lovells
Nb Au Sable River · Driftless / Midwest · USGS gage 04135800
Trout (marginal) (summer mean 18.5°C — trout, warm in summer).
Water
58°F
Flow
208 cfs
Air
57°F
Sky
100%
Pressure
30.02 in
Wind
12 mph
Predicted hatches · 2026-09-15
PredictedSpotted / Summer CaddisHydropsyche spp.0.50
Predicted by conditions; no reports yet. water 14.4°C (58°F) sits in the prime band (14-19°C); shoulder of the season; 7 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.