Upper Delaware, New York
West Branch Delaware Fishing Report: August 26, 2026
The West Branch is cold and steady at Hale Eddy, with 653 cfs, 49.3 F water, light wind, olives, ants, Isonychias, Cahills, and fading sulphurs.
- Status
- good
- Flow trend
- rising
- Best window
- Late afternoon into evening, with the best surface chance in soft light
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch remains the safest trout option in this New York report set. USGS showed 653 cfs, 3.05 feet, and 49.3 F at Hale Eddy during the morning check, up slightly from yesterday morning and still cold for late August. Current Upper Delaware source context reports a 549 cfs Cannonsville release, light wind, olives, flying ants, Isonychias, Cahills, and spotty remaining sulphurs. Expect the best dry-fly work in softer light or over shaded water; use nymphs mainly on cleaner lower-West lanes because upper-river algae can foul subsurface rigs.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater water, stable release influence, and light wind make the West Branch fishable, though bright sun and algae keep the best work more selective |
| Flow | 653 cfs at Hale Eddy during the morning check |
| Gauge Height | 3.05 feet at Hale Eddy |
| Water Temp | 49.3 F at Hale Eddy |
| Clarity | Not reported by official gauges; current local context reports generally clear water, with algae becoming an issue on the upper West Branch |
| Trend | Slightly rising compared with yesterday morning |
| Best Window | Late afternoon into evening, with morning shade also worth checking if fish are already looking up |
| Best Method | Dry flies and emergers for olives, ants, Isonychias, Cahills, and fading sulphurs; wets or light nymphs where algae is not fouling the drift |
| Wadeability | Limited. Use known bars, soft edges, and careful approaches; do not force crossings at this flow |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast calls for areas of morning fog giving way to mostly sunny skies and a high near 79 F. Wind should stay light from the west around 0 to 3 mph. Tonight is forecast to be partly cloudy near 59 F. The lack of wind helps presentation, but brighter sun can push better dry-fly activity toward shaded banks, riffle edges, and the evening.
River Notes
The Hale Eddy gauge is sitting in a familiar late-August tailwater band: enough water for boats and bank-to-bank lanes, but still too much for casual mid-channel wading. The cold release is doing the important work for trout temperature, so the West Branch deserves priority over the freestones as the day warms.
Current local Upper Delaware context lines up with the gauge: stable release-driven water, a Cannonsville release near 549 cfs, and a late-summer hatch mix rather than one dominant event. Algae is the main practical annoyance up top. If a nymph or wet-fly rig comes back fouled every drift, change methods or move to cleaner lower-West seams instead of grinding through unproductive water.
Hatch Activity
Official gauges do not report hatches. Current Upper Delaware source context supports Blue Winged Olives, flying ants, Isonychias, Light Cahills or summer stenos, tan caddis, and a few fading sulphurs. Expect short, technical windows and be ready to change size before changing pools.
| Hatch | Size | Notes |
|---|---|---|
| Blue Winged Olive | 16-24 | Best in shade, slicks, and any softer-light periods; carry both duns and emergers |
| Flying Ant | 18-24 | Important late-summer bank and foam-line pattern when trout ignore mayfly profiles |
| Isonychia or Slate Drake | 10-12 | Search riffle edges, broken banks, and lower-West water with dries, wets, or swimming nymphs |
| Light Cahill or Summer Steno | 14-16 | Useful as a searching dry during mixed evening activity |
| Tan Caddis | 16-20 | Fish pupa, emergers, or adults around riffles and broken current |
| Sulphur | 16-20 | Fading and spotty, but still possible in the cold upper river around midday or evening |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | BWO Comparadun, CDC Olive, or olive emerger | 16-24 | Use on shaded slicks, slow seams, and any steady sippers |
| Dry | Flying Ant | 18-24 | A key late-summer changeup along banks, foam lines, and tailouts |
| Dry | Isonychia Parachute, Slate Drake, Light Cahill, or Summer Steno | 10-16 | Blind-cast broken water or cover mixed larger mayflies before dark |
| Dry | Sulphur Sparkle Dun, CDC Emerger, or Comparadun | 16-20 | Carry a few for cold upper-river fish, but treat the hatch as fading |
| Wet | Soft Hackle Pheasant Tail, Soft Hackle Sulphur, or Isonychia Wet | 12-18 | Swing through riffle tails and bank seams between surface pushes |
| Nymph | Pheasant Tail, Frenchie, caddis pupa, Sulphur Nymph, or Isonychia Nymph | 12-20 | Best on cleaner lower-West lanes; check the fly often for algae |
Tactics
Start by watching before rigging heavy. If fish are eating olives or ants, use a long leader, one accurate dry, and a low approach. In riffles and broken banks, an Isonychia dry, wet, or small dropper can search water without dragging a heavy rig through algae. If you nymph, keep it targeted and move when the fly comes back dirty. The water is cold, but the flow still calls for conservative wading.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 653 cfs | 49.3 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 hatch, method, clarity, and safety context.