Green River Tailwaters Fly-fishing Guide Report & Flaming Gorge Dam Water Flow Release Report for Today through June 7, 2026.
Flaming Gorge Dam is currently releasing approximately 1,160–1,240 CFS, with minor daily fluctuations related to power generation.
Releases are expected to remain stable through June 7. A significant operational change is scheduled to begin on June 8, when flows will increase to approximately 4,600 CFS as part of the SMB experiment. This increase does not impact fishing conditions during the June 1–7 reporting period.
Operational Outlook
- Daily flows: 1,150–1,250 CFS
- Flow stability: High
- Risk of sudden changes: Low until June 8
Water Temperatures
The most recent tailwater temperature reading is 44.6°F. Because Flaming Gorge releases water from deep within the reservoir, temperatures remain consistently cold and change slowly.
Expected Water Temperature Range
- 44–46°F throughout June 1–7
Fishing Impact
Cold water temperatures keep trout feeding primarily below the surface, making nymphing the most productive technique during this period.
Water Clarity & River Conditions
Section A: Dam to Little Hole
Water clarity continues to improve following elevated flows experienced in May.
While the main channel remains slightly off-color, softer water areas such as inside bends, back eddies, and protected pockets are noticeably clearer.
Current flows remain strong, limiting safe wading opportunities. Float trips continue to be the preferred method of fishing this section.
Hatch Activity (June 1–7)
Based on current river conditions and recent hatch progression, anglers can expect the following insect activity:
Active Hatches
- Midges (#20–24) — active throughout the day
- Blue-Winged Olives (BWOs) (#18–22) — strongest midday
- Caddis (#14–18) — active during afternoons
- Pale Morning Duns (PMDs) (#16–18) — increasing as June begins
- Scuds & Sowbugs (#14–18) — remain key food sources during higher water conditions
Dry Fly Opportunities
- BWOs during overcast conditions
- Afternoon caddis activity
- Limited terrestrial activity in softer water pockets
Recommended Fly Patterns
Nymphs
- Perdigons (#12–18)
- Rainbow Warrior (#14)
- Tailwater Sowbug (#10)
- BWO Nymphs (#18–22)
Dry Flies
- Parachute BWO (#18–20)
- Caddis Dries (#14–18)
Streamers
- Goldie
- Peanut Envy
- Dungeon
Streamers will be most effective during low-light periods or when targeting slightly stained water.
Fishing Outlook by River Section
Section A: Dam to Little Hole
- Coldest water temperatures
- Trout holding tight to seams and structure
- Heavy nymph rigs recommended
- Strongest BWO activity
Section B: Little Hole to Browns Park
- Increasing water clarity
- More soft-water holding areas
- Productive streamer fishing along shelves
- Afternoon caddis activity expected
Section C: Browns Park to Colorado Line
- Wider, slower-moving water
- Scuds, sowbugs, and midges dominate
- Deep nymphing remains the most effective tactic
Safety & Operational Notes
- River flows remain swift; wading is generally not recommended.
- Cold water temperatures (44–46°F) increase the risk of hypothermia.
- Float trips are the safest and most productive option during this reporting period.
- Anglers should be aware of the scheduled flow increase beginning June 8, when releases will rise to approximately 4,600 CFS for the SMB experiment.
Summary for June 1–7, 2026
- Flows: Approximately 1,160–1,240 CFS (stable)
- Water Temperature: 44–46°F
- Clarity: Improving but still slightly off-color
- Best Tactics: Deep nymphing and targeting soft-water holding areas
- Best Hatches: Midges, BWOs, PMDs, and caddis
- Recommended Approach: Float fishing, heavy nymph rigs, and streamer fishing during low-light periods
Overall, anglers can expect stable conditions, improving clarity, and productive subsurface fishing throughout the Flaming Gorge tailwater during the first week of June.