Jackson Hole and the South Fork region

Snake River Hatch Report

Snake River | Jackson Hole and the South Fork region | Updated Oct 29, 2026, 7:00 AM MDT | Station: Snake River above Palisades Reservoir near Alpine, WY

Fish slow runs, deep riffles, and tailouts with a long, dead-drift presentation close to the bottom.

Forecast timing & sources
Forecast generated
Oct 29, 2026, 7:00 AM MDT
Valid until
Oct 30, 2026, 7:00 AM MDT
Source updated
Oct 29, 2026, 7:00 AM MDT
Flow observation
Observed Oct 29, 2026, 6:30 AM MDT
Water temperature observation
Observed Oct 29, 2026, 6:30 AM MDT

Buggin combines river and weather signals into a fishing forecast. A rating is model guidance, not a catch guarantee. Observation times can differ from forecast generation.

Configured gauge: Snake River near Moran · 13011000. The forecast point may differ from the gauge location.

Open in BugginFull Forecast

Today's Read

Cold morning water temperatures and low flows mean trout are holding in deeper slots and feeding primarily beneath the surface. A technical nymphing approach targets actively feeding fish during the warmest midday hours.

Bugs & Best Matches

What's active
Fish this
BWOs, size 16-20, Midday (10:00 AM–2:00 PM)
Sparkle Dun, size 16-20, dry; Pheasant Tail Nymph, size 16-20, nymph; RS2, size 16-20, emerger
Midges, size 18-22, Midday (10:00 AM–2:00 PM)
Zebra Midge, size 18-22, nymph; Griffiths Gnat, size 18-22, dry; Top Secret Midge, size 18-22
Caddis, size 16-18, Midday (10:00 AM–2:00 PM)
Ext بدن Caddis Pupa, size 16-18; Elk Hair Caddis, size 16-18, dry; Caddis Pupa, size 16-18, nymph
Mahogany Duns, size 16-18, Afternoon (2:00 PM–6:00 PM)
No matching fly supplied
Scuds, size 14-18, Morning (6:00 AM–10:00 AM)
No matching fly supplied

How Fish Respond To This Hatch

  • Cold morning water temperatures and low flows mean trout are holding in deeper slots and feeding primarily beneath the surface. A technical nymphing approach targets actively feeding fish during the warmest midday hours.
  • Fish slow runs, deep riffles, and tailouts with a long, dead-drift presentation close to the bottom.

Current Conditions

Flow1,790 cfs and falling
Water Temp42°F
WeatherClear Night
Rating7/10 · Good