Dry Marsh Run Near Berryville
Dry Marsh Run · Appalachia · USGS gage 01616100
Coldwater (summer mean 14.3°C — prime coldwater; very low flow (2.9 cfs) — small/seasonal).
Water
57°F
Flow
1 cfs
Air
51°F
Sky
1%
Pressure
30.10 in
Wind
8 mph
Predicted hatches · 2026-10-30
PredictedMidgeChironomidae0.16
water 14.1°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.