Idaho · river

St. Joe River

The Saint Joe River (sometimes abbreviated St. Joe River) is a 140-mile (225 km) long tributary of Coeur d'Alene Lake in northern Idaho. Beginning at an elevation of 6,487 feet (1,977 m) in the Northern Bitterroot Range of eastern Shoshone County, it flows generally west through the Saint Joe River Valley and the communities of Avery and Calder. From Wikipedia

Length
140 mi
Basin
1,850 sq mi
Flows into
Coeur D'Alene Lake

Flow now

Canyon Creek Ab Mouth At Wallace, ID, 16 mi from the river.

455cfsat build, Dec 11, 1 PM MT

01122Oct 12Nov 11

The typical week here, from 10 years of record: 13 cfs to 22 cfs, around 16 cfs.

Also gauged at St Joe River At Calder, ID: 446 cfs, Nov 12.

Snowpack

0.1 in of water in the snow at Lost Lake and 2 more stations, against a median 1.8 in for the date (8 % of normal).

The snowpack here usually builds from Oct 27, peaks Apr 23 and is gone by Jun 28; 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: 13 to 22 cfs. Running 455 cfs today, above 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

Nearby waters

Every Idaho water

Open St. Joe 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.