Upper Delaware, New York
West Branch Delaware Fishing Report: July 23, 2026
The West Branch remains cold, clear, and fishable around Hale Eddy, with a 500 cfs Cannonsville release, sulphurs and olives in the mix, and limited but workable wading.
- Status
- good
- Flow trend
- falling
- Best window
- Midday sulphurs near Deposit, then late afternoon into evening if the river stays calm
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch is still the strongest New York trout option in this report set. USGS showed 591 cfs, 2.93 feet, and 46.8 F at Hale Eddy during the morning check, while current Delaware-system reporting lists a 500 cfs Cannonsville release and clear water as the system drops back from yesterday's showers. That is good July tailwater water, with enough flow for boats and selected wading but not broad, casual crossings. Look for sulphurs around Deposit, olives, Isonychias, tan caddis, Light Cahills, and spinners, with dries and wets cleaner than bottom-dragging rigs where upper-river algae is a problem.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater temperature, clear reported water, and steady release flow give anglers a useful July dry-fly window |
| Flow | 591 cfs at Hale Eddy during the morning USGS check |
| Gauge Height | 2.93 feet at Hale Eddy |
| Water Temp | 46.8 F at Hale Eddy |
| Clarity | Clear in current Delaware-system reporting; official gauges do not report clarity |
| Trend | Falling slightly from yesterday morning and dropping back after scattered rain |
| Best Window | Midday sulphurs near Deposit, then late afternoon into evening if the river stays calm |
| Best Method | Dry flies and wets during surface activity; nymph lower-river seams if algae fouls the upper river |
| Wadeability | Limited. Fish soft edges, gravel bars, and known access points; avoid long crossings at nearly 600 cfs |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast calls for patchy fog early, then sunny skies with a high near 77 F and light northwest wind around 0 to 3 mph. Tonight should be mostly clear with areas of fog late and a low around 50 F. The low wind is helpful for flat-water dry-fly work; still re-check the gauge before launching or making bigger wade moves because localized summer showers can change side streams quickly.
River Notes
The West Branch has cold release water and enough volume to keep trout comfortable. At 591 cfs, drift boats have room, and bank or edge wading is realistic in the right places, but anglers should not treat the river like a low summer creek. Current local context says the river is clear and returning to normal after light showers, with the upper West Branch still influenced by a 500 cfs release. If algae is collecting on nymph rigs up top, move lower, switch to wets, or wait for fish to show on top rather than scraping bottom every drift.
Hatch Activity
Official gauges do not report hatches. Current Delaware-system reporting and late-July tailwater timing point to sulphurs near Deposit, small olives, tan caddis, Light Cahills, Isonychias, and rusty spinners. Smaller sulphur and olive patterns should matter more than large attractors on flat water, while Isonychia profiles are better suited to riffle edges and broken seams.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur | 16-20 | Main upper-river hatch; carry duns, emergers, cripples, and soft hackles |
| Blue Winged Olive | 16-24 | Small olives can matter in shaded or cloud-softened slicks |
| Tan Caddis | 16-20 | Pupa, soft hackles, and small adults can bridge quiet periods between mayflies |
| Light Cahill | 14-16 | Pale evening/searching mayfly for broken water |
| Isonychia | 10-12 | Fish riffle edges with a nymph, wet, or larger dry when trout show interest |
| Rusty Spinner | 14-20 | Keep ready for last light if the wind stays down |
| Ants and Beetles | 14-20 | Useful bank-side backup between hatch windows |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Sulphur Sparkle Dun, Comparadun, or CDC Emerger | 16-20 | Primary match for upper West Branch risers |
| Dry | BWO Comparadun or CDC Dun | 18-24 | Use when fish key on smaller olives |
| Dry | Elk Hair Caddis or X-Caddis | 16-20 | Small tan caddis option for riffles and seams |
| Dry | Light Cahill or White Wulff | 14-16 | Visible pale dry for evening broken water |
| Dry | Isonychia Parachute or Comparadun | 10-12 | Larger profile for riffle fish |
| Dry | Rusty Spinner | 14-20 | Keep ready for last light |
| Dry | Ant or Beetle | 14-20 | Work tight to banks when hatch activity pauses |
| Nymph | Pheasant Tail, Frenchie, or Split-Back Mayfly | 14-18 | Use in cleaner lower-river seams and check for algae often |
| Nymph | Isonychia Nymph | 10-12 | Good larger subsurface choice near riffle edges |
| Wet | Soft Hackle Sulphur or Soft Hackle Pheasant Tail | 14-18 | Swing during emergences or when fish flash below naturals |
Tactics
Watch first, then step in. If fish are already rising, use a single accurate dry or a dry with a small emerger dropper and keep the leader long enough for slow slicks. If the surface is quiet, swing wets through riffle tails or fish a sparse nymph rig in clean lower-river seams. In the upper river, algae can make bottom contact inefficient, so shorten drifts, clear the fly often, and switch back to the surface as soon as bugs or fish give you a reason. Keep wading conservative at nearly 600 cfs.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 591 cfs | 46.8 F | USGS 01426500 |
Sources
Official sources checked: USGS station 01426500 and the National Weather Service forecast for the Hancock and Hale Eddy, NY area. This report is an original Custom FlyBox summary based on current official gauge and weather data, with local public conditions reports reviewed separately for release, hatch, method, clarity, and safety context.