Big Hole River

Flow now

Big Hole River near Melrose MT, 24 mi from the river.

576cfsat build, Nov 12, 11 AM MT

The typical week here, from 10 years of record: 357 cfs to 548 cfs, around 475 cfs.

Water temperature at the gauge: 40°F.

Also gauged at Willow Creek nr Anaconda, MT: 1 cfs, Nov 12.

Snowpack

0.9 in of water in the snow at Calvert Creek and 2 more stations, against a median 1.4 in for the date (66 % of normal).

The snowpack here usually builds from Nov 10, peaks Mar 30 and is gone by May 2; 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: 357 to 548 cfs. Running 576 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

• Frontier Anglers DillonWebsiteFishing report, updated Aug 9
• Sunrise Fly Shop MelroseWebsiteFishing report, updated Sep 15

Nearby waters

• Beaverhead River41 mi

Every Montana water