FISHABLE
Stable winter flows around 850 CFS, water temps 39-42°F, crystal clear visibility with strong midge activity middayGreen River
Current Hatch Activity
Midges dominating all day with best activity 10:30am-3:30pm in sun-warmed canyon sections. BWOs sporadic on overcast afternoons. Top patterns: Zebra Midge #20-24, WD-40 #22, Griffith's Gnat #20-24, RS2 #20-22. Streamer fishing productive throughout the day—articulated patterns and Woolly Buggers #6-10 in black/olive fished with slow strips and long pauses.
FISHABLE
Deep nymph rig: Zebra Midge #22 + Scud #16 (olive/grey) under tungsten, or streamer—Woolly Bugger #8 (black/olive) fished slow with long pauses
Quick Reference
800-2,500 CFS fishable year-round. Winter releases typically sit around 800-1,200 CFS. Summer releases can fluctuate 1,200-2,800 CFS daily.
39-42°F currently (February). Tailwater temps stay remarkably stable year-round (46-56°F typical range)—no thermal stress concerns.
Dam-controlled releases from Flaming Gorge holding steady at ~850 CFS through mid-February. Flows extremely stable with no significant fluctuations expected until spring irrigation demands. Rainbow trout spawning underway—watch for redds when wading.
Crystal clear year-round. Visibility often exceeds 10 feet. Sight fishing is the norm, not the exception.
What "Fishable" Means Here
Fishable here means you can present flies effectively to feeding fish. On the Green, that's essentially year-round. The only real limiting factor is daily flow fluctuations in summer—wade fishing requires attention to rising water.
Seasonal Patterns
spring
Midges and BWOs dominate. Fish stack in seams and slower water. March and April offer excellent dry fly fishing before summer crowds arrive. Flows remain stable around 1,000-1,200 CFS.
summer
Cicadas (when they happen) bring explosive surface action. PMDs, caddis, and ants keep fish looking up. Watch for daily flow swings—wade carefully and be prepared to move. Early morning and late evening are best.
fall
Many consider this prime time. Crowds disappear, flows stabilize, and fish feed aggressively before winter. BWOs and midges provide consistent hatches. October and November are particularly good.
winter
Classic tailwater winter fishing. Fish concentrate in deeper runs and slower water. Midges hatch on sunny afternoons. Sight-nymphing with scuds and sowbugs is deadly. Low flows (850 CFS) mean more fish in predictable spots.
Alerts
Alternative Waters
Provo River
Another Utah tailwater option, closer to Salt Lake CitySan Juan River
New Mexico tailwater with similar characteristics—quality year-round fishingRiver Intel Weekly
Weekly flow updates and fishing intel.
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