Green River tailwater settles into a cool fall flow pattern
The Green River tailwater below Flaming Gorge Dam is running a clear seasonal gradient this week. USGS gauge 09234500, just below the dam, measured 51°F on a 2,180 cfs release in the early hours, while gauge 09261000 farther downstream read 57°F on 2,650 cfs — a six-degree warm-up as the river gains volume and surface exposure heading downriver. A third station, gauge 404417108524900, held at 53°F with no flow figure reported. Releases are sitting in the 2,100 to 2,700 cfs range, consistent with a steady early-October dam schedule.
New to these readings? What water temp, tide, and moon phase mean for fishing →
Fish this water?
We're light on local intel here. Send us your report and we'll credit you.
Send a reportWhat's next
Expect the temperature split between the dam-adjacent and downstream gauges to persist through the week as long as releases hold near current volume. Any bump in flow out of Flaming Gorge Dam would narrow that gap faster than a steady release would, while a cold front or a flow cut could tip the lower end toward true winter-pattern temperatures within days.
The waning crescent moon favors low-light hours this week, so early morning and dusk are the hours to build a trip around generally. Current readings point to steady flow through the weekend, making Saturday and Sunday mornings the window to plan around before any later-October stage shift.
Context
This cool-but-not-cold split between dam-release and downstream temperatures is standard for the Green River tailwater in early October. Dam discharge from Flaming Gorge Reservoir runs colder than ambient, and the river warms as it travels downstream before cooling again as nights lengthen into late fall.
The tailwater is nationally known as a Rainbow Trout and Brown Trout fishery, sustained year-round by the dam's stable bottom-release temperatures rather than the seasonal swings of a typical freestone river. Flow in the low-to-mid 2,000s cfs is a moderate, non-spike release consistent with fall management on this system rather than a flood-control or irrigation-driven high-water period.
Synthesized from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Check local regulations before keeping fish. Never trust a single source for a trip decision.
EVERY SATURDAY MORNING
Weekly fishing intelligence
Nationwide conditions, what's biting, and honest gear deals. One email, no noise.
No spam. Unsubscribe anytime.