Green River below Flaming Gorge
Green River · Utah · USGS gage 09234500
Tailwater below Flaming Gorge Dam (Greendale). Cold, clear, tailwater bug life.
Water
54°F
Flow
2,420 cfs
Air
43°F
Sky
0%
Pressure
30.00 in
Wind
2 mph
Predicted hatches · 2026-10-29
ConfirmedBlue-Winged OliveBaetis spp.0.75
Model says likely and 1 recent report confirm it. water 12.0°C (54°F) is cooling past the prime band (6-11°C); peak season; 8 days sustained ≥4°C; watch midday, especially overcast afternoons.
reports: Fly Fish Food — Green River Report
flies: BWO Sparkle Dun #18-22, RS2, Pheasant Tail #18
ReportedMidgeChironomidae0.49
1 report say it's happening, though conditions are lukewarm. water 12.0°C (54°F) is cooling past the prime band (1-10°C); shoulder of the season; 8 days sustained ≥0°C; watch midday, especially cold months.
reports: Fly Fish Food — Green River Report
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.