Today
78°F
Slight Chance Rain Showers
SSW 15 mph · 15% precip
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Today’s verdict
Current River Conditions
As of (17 days ago)
This intel is a couple of weeks old — conditions may have shifted.
As of ~2 weeks ago, fishing was slow.
The Green River is fishing on the technical side right now, with catching running slower than you'd expect for early August. Fluctuating double-peak flows are the main headache — fish are there, but they're being picky. Experienced hands are still putting solid numbers in the net, but if you're newer to the river, make every shot count.
Mornings are bringing out Tricos and tiny BWOs around 10am — fish are keying on these size 24 bugs and can be maddeningly selective. Terrestrials have been picking up steam, and beetles, ants, and crickets are all getting attention, especially when you're dropping them right against the bank. A few caddis and PMDs are still in the mix, and the morning and evening caddis bite has been fair.
Hatches
1,870 CFS is right around its typical level for September — this stretch typically runs 1,290–2,170 CFS.
Wading tends to be more manageable at typical flows, but beds shift and cold water saps strength fast — read the water, stay within your limits, and check conditions on-site. You remain responsible for your own safety.
At 59°F, the water is in the prime range for trout — cold enough to fish and to handle fish safely.
Weather
74°F
Wind SW 5 mph
Sunrise 6:58 AM · Sunset 7:27 PM
Observed (1 hour ago)
NWS / weather.gov · fetched 13:00
Today
78°F
Slight Chance Rain Showers
SSW 15 mph · 15% precip
Tonight
52°F
Chance Showers And Thunderstorms
S 10 to 15 mph · 33% precip
Tomorrow
74°F
Chance Rain Showers then Chance Showers And Thunderstorms
SE 10 to 15 mph · 43% precip
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Size #24
Size #16
Size #20-24
Size #22
Conditions are estimates from USGS data. Always assess on-site conditions and use your own judgment.
The Greendale gauge sits just below Flaming Gorge Dam at the head of the Dutch John / Red Canyon tailwater — Sections A, B, and C down to Little Hole, the canyon water known for big trout. It carries both flow and water temperature, so the conditions reflect the tailwater anglers actually fish.
Location

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The Green River below Flaming Gorge Dam is a clear, cold tailwater flowing through dramatic red-rock country in northeastern Utah. It is divided into the A, B and C sections. The A section below the dam has the highest trout density and easiest trail access; B is more remote and often floated as an overnight trip; C is less consistent but offers solitude and larger-river character. Brown and rainbow trout predominate, with cuttbows and occasional cutthroat trout and whitefish. Fishing is available year-round, although dam releases strongly influence tactics and access. Midges and blue-winged olives provide important cool-season fishing, followed by caddis and PMDs. Cicadas, ants, beetles and crickets can create memorable summer dry-fly action. Sight-fishing dry flies and dry-dropper rigs is popular in clear water, while small nymphs remain dependable. Streamers imitate abundant sculpins and can move larger trout, especially early, late or under clouds. Boats are the most efficient way to cover the river, but the A-section trail offers substantial walk-and-wade access.
Tactics
Size #6-10
Size #12-18