Flow
Very low · 159 cfs
Trend
Steady
Observed
13d ago
Hatch Status
Blue-Winged Olives (Baetis) get moving midday, best dry fly action in early afternoon window.
Conditions
Gin-clear flows at 159 cfs have pushed the Henrys Fork into a selective mood, rewarding patient anglers who stay low and move slow. As of October 5, stable weather with clear skies and a forecast high near 74°F concentrates the best dry fly window to midday and early afternoon. Mahogany Duns and Blue-Winged Olives should draw fish between 11 AM and 3 PM, backed by a consistent emergence of midges at dawn and caddis late in the day. Use a long leader tapered to 6X or 7X, wade deliberately, and stay well downstream to avoid spooking fish in shallow, transparent water.
Gauges
Techniques
- Dry fly action expected midday and early afternoon when Mahogany Duns and BWOs get moving.
- Use Top Secret Baetis #16 for Baetis nymphs.
- Use Black Zebra Midge (TBH) #20 for midges.
- Use Corn-fed Caddis (CDC) Olive #20 for caddis.
- Use Olsen's Hare's Ear Blowtorch Barbless #20-28 for nymphs.
- Use Roza's World Spain Perdigon Barbless #18-32 for small nymphs.
- Use Coffey's CH Sparkle Minnow Sculpin #6 for baitfish imitation.
- Use Egan's Thread Frenchie Jig - Olive #12 for small nymphs.
- Use Olsen's Pheasant Tail Nymph Doppleganger Brown Barbless #20 for nymphs.
- Use Tungsten Jig Bugger - Olive - Barbless #14 for streamer fishing.
Recommended flies
Parachute Blue Wing Olive #22Juju Baetis Tungsten #22Top Secret Baetis #16Egan's Silver Bullet Baetis #14Olsen's Hare's Ear Blowtorch Barbless #20Roza's World Spain Perdigon Barbless #18Corn-fed Caddis (CDC) Olive #20Black Zebra Midge (TBH) #20Egan's Thread Frenchie Jig Olive #12Coffey's CH Sparkle Minnow Sculpin #6Tungsten Jig Bugger Olive Barbless #14Olsen's Pheasant Tail Nymph Doppleganger Brown Barbless #20
Safety
Wade deliberately and stay well downstream to avoid spooking fish in shallow, transparent water.