Upper Delaware, New York
West Branch Delaware Fishing Report: August 27, 2026
The West Branch is cold and fishable at Hale Eddy, with 648 cfs, 49.1 F water, clouds, storm risk, olives, Hebes, ants, Isonychias, Cahills, and fading sulphurs.
- Status
- good
- Flow trend
- falling
- Best window
- Cloudy periods and late afternoon into evening; stop during thunderstorms
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch is still the best protected trout option in this New York set. USGS showed 648 cfs, 3.04 feet, and 49.1 F at Hale Eddy during the morning check, a slight drop from yesterday morning and still cold enough for all-day trout temperature. Current Upper Delaware source context reports a 549 cfs Cannonsville release, scattered rain, afternoon thunderstorm risk, olives, Hebes, flying ants, Isonychias, Cahills, and a fading sulphur presence. Fish the cloud cover if storms stay away, but leave the water during thunder or lightning.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater water, a steady release, cloud cover, and useful late-summer bugs make the West Branch fishable, with thunderstorms the main safety limit |
| Flow | 648 cfs at Hale Eddy during the morning check |
| Gauge Height | 3.04 feet at Hale Eddy |
| Water Temp | 49.1 F at Hale Eddy |
| Clarity | Not reported by official gauges; current local context has not flagged a major clarity problem, though algae remains a practical upper-West concern |
| Trend | Slightly falling compared with yesterday morning |
| Best Window | Cloudy periods, softer edges, and late afternoon into evening; stop during thunderstorms |
| Best Method | Dry flies and emergers for olives, Hebes, ants, Isonychias, Cahills, and remaining sulphurs; wets or light nymphs where algae is not fouling the drift |
| Wadeability | Limited. Use known bars, bank edges, and conservative crossings; this remains more comfortable from a boat than casual mid-channel wading |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast calls for mostly cloudy skies, a high near 80 F, south wind around 6 mph, and a high chance of showers and thunderstorms this afternoon. Rain totals could reach a quarter to half inch today, with additional showers and thunderstorms possible tonight. The cloud cover helps small-olive and ant fishing, but lightning risk is a hard stop, not a fish-through condition.
River Notes
Hale Eddy is almost unchanged from yesterday, just a few cfs lower, and the cold release is still carrying the trout program. At this level the West Branch has enough push for drift boats and long bank-to-bank seams, but it is not low, easy wading water. Pick deliberate entries and avoid forcing crossings just because the water looks clear.
Current Upper Delaware context points to a mixed late-August day. Cloud cover and light rain can improve Blue Winged Olive and Hebe activity, while ants remain an important changeup on banks, foam lines, and slow tailouts. If upper-river algae makes subsurface flies dirty every drift, switch to dry-fly work or move to cleaner lower-West lanes.
Hatch Activity
Official gauges do not report hatches. Current Upper Delaware source context supports Blue Winged Olives, Hebes, flying ants, Isonychias, Light Cahills or summer stenos, tan caddis, tricos in the morning mix, and a few fading sulphurs. Expect technical windows rather than a blanket hatch.
| Hatch | Size | Notes |
|---|---|---|
| Blue Winged Olive | 18-24 | Clouds, light rain, slicks, and shaded seams are the best setup; carry emergers as well as duns |
| Hebe | 18-20 | Useful during damp late-summer windows when fish are working small mayflies |
| Flying Ant | 18-24 | Important along banks, foam lines, and slow water when trout refuse mayfly profiles |
| Isonychia or Slate Drake | 10-12 | Search broken banks, riffle edges, and lower-West water with dries, wets, or swimming nymphs |
| Light Cahill or Summer Steno | 14-16 | Good larger-profile option during mixed evening activity |
| Trico | 20-24 | Morning option on flatter lower-river water if spinners collect and fish are steady |
| Sulphur | 16-20 | Fading and spotty, but still worth a few cold-water patterns in the upper river |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | BWO Comparadun, CDC Olive, or olive emerger | 18-24 | Use during cloudy or damp windows on slicks and slow seams |
| Dry | Hebe, Flying Ant, or small beetle | 16-24 | Strong late-summer bank and foam-line choice when trout are selective |
| Dry | Isonychia Parachute, Slate Drake, Light Cahill, or Summer Steno | 10-16 | Blind-cast broken water or cover larger evening mayflies |
| Dry | Trico Spinner or Sulphur Sparkle Dun | 16-24 | Carry a limited selection for morning spinner water and remaining cold upper-river sulphurs |
| Wet | Soft Hackle Pheasant Tail, Isonychia Wet, or soft-hackle sulphur | 12-18 | Swing 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 often for algae |
| Streamer | Small olive or black sculpin, Woolly Bugger, or sparse baitfish pattern | 4-8 | Worth a short test under clouds or fresh stain, especially from a boat |
Tactics
Start with observation, not weight. If the sky stays gray, watch slow inside seams, tailouts, and shaded banks for small olives, Hebes, or ants. A long leader, single dry, and careful reach cast will usually beat a complicated rig over picky fish. For riffles and broken banks, an Isonychia dry or wet fly can cover water without dragging a heavy nymph setup through algae. Keep an eye on the radar, and leave the river during thunder or lightning.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 648 cfs | 49.1 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.