Utah · river

Green River

The Green River is a 730 mi (1,170 km) long river located in the western U.S. states of Wyoming, Utah, and Colorado. The chief tributary of the Colorado River, its watershed, the Green River Basin, begins in the Wind River Range of Wyoming and flows through Wyoming and Utah for most of its course, except for a short segment of 40 miles (64 km) in western Colorado. From Wikipedia

Flow now

Green River Near Greendale, UT, 9 mi from the river.

1,910cfsat build, Nov 12, 11 AM MT

01,1402,280Oct 12Nov 11

The typical week here, from 10 years of record: 930 cfs to 1,620 cfs, around 1,340 cfs.

Water temperature at the gauge: 51°F.

Also gauged at Henrys Fork Near Manila, UT: 128 cfs, Nov 12.

Snowpack

0.1 in of water in the snow at Trout Creek and 2 more stations, against a median 0.9 in for the date (12 % of normal).

The snowpack here usually builds from Nov 1, peaks Apr 7 and is gone by May 13; runoff follows the melt.

The season, November

Usually workable this week. Pick your window and fish it well.

  • Midgessizes 18 to 22
  • Small eggs and worms
  • Pheasant tail and zebra midge nymphsunder an indicator

Typical for the week over 10 years: 930 to 1,620 cfs. Running 1,910 cfs today, inside that range. Flows are not forecast; check the gauge the day before.

Brown Trout are spawning (October to December). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Brook Trout are spawning (September to November). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Mountain Whitefish are spawning (October to December). The egg bite behind spawning whitefish is the best winter nymphing of the year: an egg pattern below the riffles.

  • Egg patterns in the runs below the spawning gravel, never on it.

Written by the app's rules engine from the calendar, the gauge record and the snowpack, not by hand, so it says only what the data says. The weather for the week comes with the app.

Fly shops on this water

Open Green River in FlyMaster for today's plan, the flies, and your own log here.

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Flows from the U.S. Geological Survey, snowpack from the NRCS SNOTEL network, text from Wikipedia (CC BY-SA 4.0). Built Nov 12.