Upper Delaware, New York
West Branch Delaware Fishing Report: August 24, 2026
The West Branch is steady and cold at Hale Eddy, with 648 cfs, 48.7 F water, light rain chances, olives, ants, Isonychias, Cahills, and fading sulphurs.
- Status
- good
- Flow trend
- stable
- Best window
- Cloudy or lightly showery periods from late morning through afternoon, with evening worth checking
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch remains the strongest trout option in this New York report set. USGS showed 648 cfs, 3.04 feet, and 48.7 F at Hale Eddy during the 8 AM check, nearly unchanged from yesterday morning and cold enough to protect trout through a late-August day. Current Upper Delaware source context reports a 549 cfs Cannonsville release, clouds, a chance of light rain, good olive activity, flying ants, Isonychias, Cahills, tan caddis, and sulphurs that are becoming spottier. Wade carefully at this flow, and if algae fouls nymph rigs on the upper river, shift to dries, emergers, soft hackles, or lower-West seams.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater flow, stable water, clouds, and light rain chances create a practical dry-fly and wet-fly window; algae and any passing storm are the main limits |
| Flow | 648 cfs at Hale Eddy during the 8 AM check |
| Gauge Height | 3.04 feet at Hale Eddy |
| Water Temp | 48.7 F at Hale Eddy |
| Clarity | Not reported by official gauges; current local context does not indicate a blowout or major clarity problem |
| Trend | Stable to slightly lower compared with yesterday morning |
| Best Window | Cloudy or lightly showery periods from late morning through afternoon; check evening soft light if storms stay away |
| Best Method | Dry flies, emergers, and soft hackles first; nymph cleaner lower-river seams if the upper river is collecting algae |
| Wadeability | Limited. Use known bars, softer edges, and controlled crossings rather than forcing mid-river moves |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast calls for patchy morning fog giving way to mostly sunny skies with scattered rain showers and a high near 72 F. Wind should stay light from the southwest, generally 2 to 6 mph. Scattered showers remain possible tonight, and Tuesday brings another chance of showers and thunderstorms. The light wind and cloud or shower windows are useful for olives and cautious tailwater trout, but lightning or a quick rise from a storm should end the session until conditions settle.
River Notes
The Hale Eddy gauge is holding in a steady late-August band. There is enough water for boats and full river lanes, but wading is still a pick-your-crossing decision. Plan on bank work, gravel bars, inside seams, and controlled moves rather than trying to chase every rise across the channel.
Current Upper Delaware source context lines up with the official gauge: Cannonsville release water is keeping the West Branch cold, and today's cooler air, clouds, and rain chance should help fish stay more willing than they would under hard sun. The practical nuisance is still algae on the upper river. If a nymph or wet-fly rig keeps coming back fouled, change method or location instead of wasting the best weather window.
Hatch Activity
Official gauges do not report hatches. Current Upper Delaware source context supports Dark Blue Winged Olives, flying ants, tan caddis, Light Cahills or summer stenos, Isonychias, and waning sulphurs. Olives and ants deserve extra attention today because light rain, clouds, and soft edges can make small surface food more important than the remaining sulphurs.
| Hatch | Size | Notes |
|---|---|---|
| Dark Blue Winged Olive | 16-18 | Best in clouds, light rain, slicks, and soft seams with steady sipping fish |
| Flying Ant | 18-24 | Strong late-summer changeup along banks, foam seams, and tailouts |
| Sulphur | 16-20 | Spotty and fading, but still worth carrying on the coldest upper West Branch water |
| Tan Caddis | 16-20 | Fish pupa, emergers, or small adults in riffles and broken current |
| Light Cahill or Summer Steno | 14-16 | Useful as a searching dry during mixed afternoon or evening activity |
| Isonychia or Slate Drake | 10-12 | Blind-cast dries, swing wets, or fish nymphs along faster banks and riffle edges |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | BWO Comparadun, CDC Olive, or olive emerger | 16-18 | Use during cloud cover, showers, or steady sipping in slick water |
| Dry | Flying Ant | 18-24 | Use when trout refuse standard mayfly profiles or feed along foam and bank seams |
| Dry | Sulphur Sparkle Dun, CDC Emerger, or Comparadun | 16-20 | Keep a few for cold upper-river water even as the hatch fades |
| Dry | Isonychia Parachute, Slate Drake, or Light Cahill | 10-16 | Search broken water before trout lock onto smaller flies |
| 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, Sulphur Nymph, caddis pupa, or Isonychia Nymph | 12-20 | Best on lower-West seams where algae is less likely to foul the rig |
Tactics
Watch the river before rigging heavy. If clouds or light showers have fish looking up, start with a long leader and one accurate olive, ant, Cahill, Isonychia, or a dry-and-emerger pair. If there are no steady rises, swing soft hackles through riffle tails and bank seams before adding weight. Keep nymphing focused on the lower West or cleaner lanes, and move if algae keeps fouling the drift. Leave the river during thunderstorms; cold tailwater temperatures do not reduce lightning or quick-runoff risk.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 648 cfs | 48.7 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.