Green River in Utah Fly Fishing Report - August 8/19/2025
GREEN RIVER, UTAH FLY FISHING REPORT
Below Flaming Gorge Dam (Sections A, B & C)
Report Date: August 19, 2025 | Next Update: August 26, 2025
Current River Conditions
Terrestrial bite is on. Daytime releases around 1,600–1,700 CFS with clear water. Trout are hunting the banks—dry-dropper and hopper rigs are producing. Keep a small nymph rig ready when the surface action pauses.
Flows & Clarity
Flow Rate: 1,600–1,700 CFS (typical daytime release)
Water Clarity: Clear (3–5 ft visibility)
Release: Flaming Gorge Dam
Flow Rate: 1,600–1,700 CFS (typical daytime release)
Water Clarity: Clear (3–5 ft visibility)
Release: Flaming Gorge Dam
Water Temperature
Current: 48–58°F (9–14°C)
Daily Range: Cool mornings, warming by afternoon
Trend: Seasonally stable
Current: 48–58°F (9–14°C)
Daily Range: Cool mornings, warming by afternoon
Trend: Seasonally stable
Weather Conditions
Forecast: Warm, mostly sunny; isolated PM clouds or a stray storm possible
Wind: Light mornings; typical canyon gusts 10–20 mph in the afternoon
Forecast: Warm, mostly sunny; isolated PM clouds or a stray storm possible
Wind: Light mornings; typical canyon gusts 10–20 mph in the afternoon
Access Points
Sections A, B, and C open
Boat Ramps: Spillway, Little Hole, Indian Crossing, and downstream ramps operational
Road Conditions: Good; expect midday crowding at popular accesses
Sections A, B, and C open
Boat Ramps: Spillway, Little Hole, Indian Crossing, and downstream ramps operational
Road Conditions: Good; expect midday crowding at popular accesses
Hatch Chart & Insect Activity
| Insect | Size | Activity Level | Prime Time |
|---|---|---|---|
| Grasshoppers | #8–14 | Heavy ⭐⭐⭐⭐ | Late morning through afternoon, best on windy banks |
| Ants | #14–18 | Heavy ⭐⭐⭐⭐ | Midday to late afternoon, foam lines/eddies |
| Beetles | #12–16 | Moderate ⭐⭐⭐ | Midday; tight to structure and grass edges |
| PMDs | #16–18 | Light–Moderate ⭐⭐⭐ | Late morning to early afternoon |
| Caddis | #14–18 | Moderate ⭐⭐⭐ | Evening skitter and egg-laying |
| Midges | #18–24 | Moderate ⭐⭐⭐ | Early and late; all day under clouds |
| Cicadas | #6–10 | Spotty ⭐⭐ | Midday; occasional big-fish eats along the banks |
Recommended Flies
- Dry Flies: Bionic Hopper - Tan (#8–12), Bionic Hopper - Yellow (#8–12), Fancy Pants Hopper - Tan (#10–12), Taylor's Fat Albert - Black (Hi Vis) (#6–10), Card's Green River Super Cicada (#6–8), Card's Cicada (#6–8), PMX Cricket - Green River Edition (#10), Bionic Ant 2.0 - Black (#14–16), Bionic Ant 2.0 - Purple (#14–16), Corn-fed Caddis (CDC) - Tan (#14–16), Palomino Caddis - Gray (#14–16), Stealth Link PMD (#16–18), Parachute Adams (#14–18)
- Nymphs: Tungsten Pat's Rubber Legs - Tan & Brown (#8–10), Pheasant Tail Tungsten (#16–18), Egan's CDC Rainbow Warrior (#16–20), Egan's Frenchie (#14–18), Juju Baetis Tungsten (#18–20), Higa's SOS - Black (#16–20), Tungsten Split Case PMD (#16–18), Black Zebra Midge (TBH) (#18–22), Redneck Midge (#18–22), Tungsten Tailwater Sowbug - Rainbow (#14–18), Egan's Warrior Perdigon - Rainbow (#16–18), Red Neck Gasolina Perdigon (#16–18)
- Streamers: Sculpzilla - Olive (#4–6), Coffey's CH Sparkle Minnow - Sculpin (#4–6), Rusty Trombone (#2–6), Galloup's Barred Mini Dungeon - Olive (#2–6), Egan's Poacher - Olive (Jig Streamer) (#4–6), Tungsten Jig Bugger - Olive (#6–8), Master Splinter Mouse - Brown (low light)
Tactics & Tips
Morning: Start subsurface in riffles and tailouts with a two-fly rig (stonefly or sowbug anchor with a midge/PMD dropper). Set 6–8 ft to the first fly under an indicator; 5X to the top fly and 5.5–6X to the dropper.
Afternoon: Work a hopper or cicada tight to the banks, grass edges, and foam seams. Add a #16–20 baetis/PMD or midge on 18–24" of 5.5–6X for a dry-dropper. Windy periods often spark the best hopper eats.
Evening: Swing or skate caddis in soft water near the bank. As light fades, small midges and spent mayflies bring pods up—lengthen leaders to 12 ft and downsize tippet.
Streamer Fishing: Midday shade and deep ledge lines shine. Fish sculpin patterns on a floating line with a 7.5–9 ft 0X–2X leader; vary retrieve from slow swings to short, sharp strips. Jig streamers excel in pocket water.
Section Notes: A: Sight-fish shelves and emerald drop-offs; stealth and long leaders pay. B: Classic hopper banks with mid-river shelves. C: Nymph deeper runs; watch for afternoon winds but fewer crowds.
Flow Management: Expect daily fluctuations from Flaming Gorge Dam. If releases bump, add weight and target softer edges; if they drop, fish slide shallower and tighter to structure.
Afternoon: Work a hopper or cicada tight to the banks, grass edges, and foam seams. Add a #16–20 baetis/PMD or midge on 18–24" of 5.5–6X for a dry-dropper. Windy periods often spark the best hopper eats.
Evening: Swing or skate caddis in soft water near the bank. As light fades, small midges and spent mayflies bring pods up—lengthen leaders to 12 ft and downsize tippet.
Streamer Fishing: Midday shade and deep ledge lines shine. Fish sculpin patterns on a floating line with a 7.5–9 ft 0X–2X leader; vary retrieve from slow swings to short, sharp strips. Jig streamers excel in pocket water.
Section Notes: A: Sight-fish shelves and emerald drop-offs; stealth and long leaders pay. B: Classic hopper banks with mid-river shelves. C: Nymph deeper runs; watch for afternoon winds but fewer crowds.
Flow Management: Expect daily fluctuations from Flaming Gorge Dam. If releases bump, add weight and target softer edges; if they drop, fish slide shallower and tighter to structure.
