Idaho ·
Snake River Fly Fishing Report - November 1, 2026

SNAKE RIVER
ReportNOV 1 — 8, 2026
🌊
Flow
912CFS
SNAKE RIVER AT MOOSE, WY
🌡️
Water Temp
—
Updated 2026-10-31
☀️
Weather
31–43°F
Rain Showers Likely
💧
Clarity
Clear
Check post-storm
Flow at Moose is running 912 CFS at a gauge height of 8.91 ft — down from recent highs and well below seasonal median, concentrating cutthroat tightly in main-channel seams, troughs, and ledge rock pools. All-day rain today with a high of only 42°F will keep surface action muted until early afternoon, but nymphing shallow riffles should produce consistently.
What's Working — Hot Flies

Olsen's Peacock Blowtorch Barbless #22 - 24
#22-24

Black Zebra Midge(TBH) #20
#20

BWO WD-40 #22
#22

Juju Baetis Tungsten #22
#22

Parachute - Blue Wing Olive #22
#22

Barr's Flashback Emerger - BWO #22
#22

Slush Egg Apricot - 14 #14
#14

Roza's World Spain Perdigon Barbless #18 - 32
#18-20

Egan's CDC Rainbow Warrior #22
#22

Coffey's CH Sparkle Minnow Sculpin #6
#6

Tungsten Jig Bugger - Olive - Barbless #14
#14

Lil Bit Craven - Dark Olive #22
#22
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Midges | 20-24 | Heavy | 12 PM - 3 PM |
| Blue-Winged Olives (Baetis) | 20-22 | Moderate | 11 AM - 2 PM |
| Whitefish Roe (spawn waning) | 14 | Light | 10 AM - 1 PM |
| Caddis (remnant) | 18-20 | Light | 1 PM - 3 PM |
| Sculpin / Baitfish | 4-8 | Light | 2 PM - 4 PM |
Best Time Window
- 10 AM - 12 PM: Nymph rigs in shallow riffles and troughs before the hatch; roe patterns in riffle runs.
- 12 PM - 3 PM: Prime midge and BWO window — nymphs sub-surface and dry emergers in slow eddies for surface-feeding cutthroat.
- 3 PM - 4:30 PM: Streamer hour along undercut banks and slow current seams before light fades.
Guide's Tip
From the benchWith flows at 912 CFS and the river running clear, fish are stacked in predictable lies — focus your time on shallow riffles, riffle pools, and the seam edges of main-channel troughs. Set your indicator so your flies are drifting 2 to 3 feet below the surface; these November cutthroat are not going to move far off the bottom to eat. Don't bother rushing to the water early — with all-day cloud cover and rain, the midge and BWO activity won't really fire until 11 AM at the earliest, and the best surface window will be 1 PM to 3 PM in slow eddies. If you want to throw a streamer, save it for the last 90 minutes of light and work it slowly along undercut banks and structure with minimal stripping — let the current do the work.
Main Species
Snake River Fine-Spotted Cutthroat Trout
Brown Trout
Rainbow Trout
