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Green River Fishing Report

Prepared for Dutch John Resort

Green River Fly Fishing Guide Report

Flaming Gorge Dam water flow and release update with this week’s temps, hatch windows, and section by section tactics for the Green River.

Monday August 10 – Sunday August 16, 2026
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Green River Fly Fishing Guide Report
This Week on the Green

The Green River is running a double-peak release this week, roughly 1,800 CFS on average with cold, clear tailwater and a busy late summer hatch. Morning Tricos, midday terrestrials, and evening caddis are all in play for anglers who can read the seams.

Below is the current dam release status, water temperature and clarity, hatch timing, our recommended fly box, and a full tactical breakdown of Sections A, B, and C. With flows surging midday and precise presentations required, a guided drift boat is the most productive way to reach the active feeding zones.

Green River Fly Fishing Guide Report
~1,826 CFS
Dam Discharge
61.3°F
Water Temp
Clear
Clarity
Double Peak
Release Pattern
Section 01

Current Dam Release Status

Dam Discharge
~1,826 CFS with daily fluctuations driven by power-generation cycles.
Reservoir Elevation
6,011.90 to 6,012.13 ft
Operational Pattern
Double-peak release schedule continues, producing midday surges and technical fishing conditions.
Outlook
Expect 1,700 to 1,900 CFS daily averages with predictable morning lows and noon and afternoon rises. The tailwater stays cold, clear, and ideal for trout activity.
Section 02 and 03

Water Temperature, Clarity and River Conditions

Green River Below Dam
61.3°F, an ideal temperature for active trout feeding.
  • Strong morning dry fly windows with Tricos and midges
  • Excellent midday terrestrial action
  • Evening caddis remains productive
Clarity
Clear
River Behavior
  • Double-peak flows create unsettled fish and require precise presentations
  • Inside seams and soft edges outperform heavy mid-river current
  • Dutch John Resort fly fishing guides maneuver drift boats into the correct seams and eddies for excellent access to all active feeding zones
  • Afternoon winds may assist terrestrial drift
Green River Fly Fishing Guide Report
Section 04

Hatch Activity

Match the size to the window and you will stay on feeding fish all day.

HatchSizeWindow
Tricos#249 to 11 AM
BWOs#22–2410 AM to 12 PM
PMDs#18–2011 AM to 2 PM
Caddis#18–206 to 8 PM
Terrestrials#12–1612 to 5 PM, heavy
Midges#207 to 10 AM

Book a Guided Float This Week

Our guides put you on the right seam at the right hour and handle the technical double-peak flows. See open dates and reserve your trip on the Green.

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Section 05

Recommended Fly Patterns

Nymphs

  • Tungsten Split Case PMD #18–20
  • Pheasant Tail #16–22
  • Zebra Midge #20
  • Juju Baetis #22
  • Frenchie #12–16
  • Rainbow Warrior #14

Dry Flies

  • Trico Spinner #24
  • Parachute BWO #22
  • PMD Sparkle Dun #16–18
  • Corn-Fed Caddis #20
  • Bionic Ant #16
  • Beetle #14–18

Terrestrials

  • Bionic Hopper #12
  • PMX Cricket #10
  • Chubby Chernobyl #10–14
  • Galactic Ant #14

Streamers

  • Gallop's Mini-Flatliner
  • Baby Gonga tan
  • El Sculpito tan
  • Cheech Leech articulated
  • Complex Twist Bugger
  • Kreelex
  • Galloup's Dungeon articulated
Green River Fly Fishing Guide Report
Fly fishing the Green River tailwater
Huge Brown Trout is safely released back into the green river by Dutch John resort.
Section 06

Section by Section Outlook

A full tactical breakdown of Sections A, B, and C, including techniques, dries, nymphs, streamers, and terrestrials.

Section A
→
Dam to Little Hole

Dam to Little Hole

Clear water and slow eddies reward a stealthy, long-leader approach.
Techniques
  • Sight-fishing Trico pods in slow back eddies, morning
  • Nymph the seams during flow spikes
  • Terrestrial plop and drift tight to grassy banks, midday
  • Long leaders, 6X to 7X, required in clear water
Dry Flies
  • Trico Spinner #24
  • Parachute BWO #22
  • PMD Sparkle Dun #16–18
Nymphs
  • Split Case PMD #18–20
  • Zebra Midge #20
  • Pheasant Tail #18–22
Streamers and Terrestrials
  • Baby Gonga
  • Mini-Flatliner
  • Cheech Leech
  • Bionic Hopper #12
  • Ants #16–20
  • Beetles #14–18
Guide note. The morning Trico window is excellent, and the best fishing comes when flows are down.
Section B
→
Little Hole to Browns Park

Little Hole to Browns Park

Midday surges push fish deep, so get down in the slots and work the banks.
Techniques
  • Deep nymphing in the slots during midday surges
  • Dry-dropper rigs, Chubby plus PMD emerger
  • Terrestrials inches from the bank, drifting along seams and eddies
Dry Flies
  • PMD Sparkle Dun #16–18
  • Caddis #18–20
  • Trico Spinner #24
Nymphs
  • Frenchie #14–16
  • Rainbow Warrior #14
  • Zebra Midge #20
Streamers and Terrestrials
  • Dungeon, articulated
  • Complex Twist Bugger
  • Kreelex
  • PMX Cricket #10
  • Bionic Hopper #12
  • Beetles #14–18
Guide note. Yellow Sallies are present. Fish aggressively once the flow stabilizes.
Section C
→
Browns Park to Colorado Line

Browns Park to the Colorado Line

Broad, slow flats built for long terrestrial drifts and dusk streamer swings.
Techniques
  • Terrestrial drifts in broad flats
  • Deep streamer swings at dusk
  • Indicator rigs in slow, wide water
Dry Flies
  • PMD Spinner #18
  • Caddis #18
  • Trico #24
Nymphs
  • PMD Nymph #18–20
  • Blowtorch #22–24
  • Soft Hackle #22
Streamers and Terrestrials
  • Galloup's Dungeon
  • El Sculpito
  • Articulated Buggers
  • Beetles #14
  • Hoppers #10–12
  • Ants #16
Guide note. The midday terrestrial bite is strongest, with an afternoon flow rise around noon.
Green River Fly Fishing Guide Report
Green river trout fishing in a drift boat Dutch John Resort fly fishing guides.
Section 07

Safety and Operational Notes

Rapid Rises
Double-peak flows can rise rapidly, so monitor rock waterlines.
Afternoon Wind
Afternoon winds may affect boat control but improve terrestrial drift.
Cold Water
Water remains cold enough for hypothermia with prolonged exposure.
Section 08

Summary for August 10 to 16, 2026

Flows
~1,800 CFS average with daily fluctuations.
Water Temp
~61°F.
Clarity
Clear.
Best Tactics
Morning Tricos, midday terrestrials, and evening caddis.

Best Windows to Fish

7–10 AM
Midges and Tricos
10 AM–1 PM
PMDs and BWOs
12–5 PM
Terrestrials
6–8 PM
Caddis

Ready to Fish the Green River?

Conditions are dialed in this week. Lock in a guided trip with the Dutch John Resort team and put these tactics to work on the water.

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Green River fly fishing report prepared for Dutch John Resort, Flaming Gorge, Utah. Conditions for August 10 to 16, 2026.