Upper Delaware, New York
West Branch Delaware Fishing Report: July 27, 2026
The West Branch is steady, cold, and fishable around Hale Eddy, with a 500 cfs Cannonsville release, upper-river sulphurs, and a watch-the-radar afternoon thunderstorm risk.
- Status
- good
- Flow trend
- stable
- Best window
- Midday sulphurs near Deposit, then late afternoon if thunderstorms stay away
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch remains the strongest trout option in this New York morning set. USGS showed 571 cfs, 2.89 feet, and 48.0 F at Hale Eddy during the morning check, and current Delaware-system source context continues to show a 500 cfs Cannonsville release. That keeps the upper river cold and workable for floating, with careful wading on known bars and soft edges. The best dry-fly target is still the upper West Branch sulphur water near Deposit, but carry rain gear and watch the radar because the National Weather Service has showers and thunderstorms in the afternoon forecast.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater temperature, steady release flow, and current sulphur activity make this the best trout option in the active New York report set |
| Flow | 571 cfs at Hale Eddy during the morning USGS check |
| Gauge Height | 2.89 feet at Hale Eddy |
| Water Temp | 48.0 F at Hale Eddy |
| Clarity | Not reported by official gauges; local Delaware context points to fishable water, with algae still a problem on the upper West Branch |
| Trend | Stable compared with yesterday morning at Hale Eddy |
| Best Window | Midday sulphurs near Deposit, then late afternoon into evening if storms stay away |
| Best Method | Dry flies and emergers during sulphur and olive activity; soft hackles or nymphs in cleaner lower-river seams if fish are not rising |
| Wadeability | Limited. The flow is manageable in known spots, but boats remain the easier way to cover water and long crossings are not worth forcing |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast calls for areas of fog early, then partly sunny skies with a high near 82 F and light west wind around 2 mph. Scattered showers and thunderstorms are possible from early afternoon into evening, with patchy fog and a low near 61 F tonight. Light wind helps dry-fly presentation, but any thunderstorm cell can quickly turn a drift or open riffle unsafe.
River Notes
The release and gauge numbers are nearly unchanged from Sunday morning, so anglers can plan around familiar summer tailwater conditions. The upper West Branch has cold water and a good floating level, but local context continues to point to enough algae up top that dries, emergers, and short subsurface presentations are cleaner than dredging nymph rigs all day. For nymphing, the lower West Branch or cleaner seams are the better starting point. Downstream and mainstem water should still be checked with a thermometer as the afternoon warms; the Hale Eddy number is cold, but it does not describe every reach below the tailwater influence.
Hatch Activity
Official gauges do not report hatches. Current Delaware-system reports and late-July tailwater timing support sulphurs, small olives, Isonychias, tan caddis, Light Cahills, spinners, and terrestrials. The upper West Branch sulphur window remains the main dry-fly play, and smaller flies or emergers may matter more than larger high-floating patterns on slow water.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur | 16-20 | Main upper-West Branch hatch; carry duns, emergers, cripples, and soft hackles |
| Blue Winged Olive | 16-24 | Small olives can mix with sulphurs, especially under clouds or during unsettled weather |
| Isonychia | 10-14 | Useful as a larger wet, nymph, or searching dry around riffles and broken edges |
| Tan Caddis | 16-20 | Pupa, soft hackles, and adults cover seams between mayfly pushes |
| Light Cahill | 14-16 | Pale evening or searching mayfly for broken water |
| Rusty and Sulphur Spinners | 16-24 | Worth carrying near last light if wind and thunderstorms allow a calm spinner window |
| Ants and Beetles | 14-20 | Good bank-side backup during bright or quiet periods |
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 | 16-24 | Use when fish key on smaller olives mixed into the hatch |
| Dry | Isonychia Parachute or Comparadun | 10-14 | Larger profile for riffle edges and dry-dropper searching |
| 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 | Rusty Spinner or Sulphur Spinner | 16-24 | Keep ready for last light if storms do not interrupt the spinner fall |
| Dry | Ant or Beetle | 14-20 | Bank-side option when bright sun slows mayflies |
| Wet | Soft Hackle Sulphur or Soft Hackle Pheasant Tail | 14-18 | Swing through riffle tails during emergences |
| 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 |
Tactics
Start by watching for noses before tying on weight. If sulphurs or olives are moving, fish one accurate dry or a dry with a small emerger dropper and lengthen the leader for slick water. If the surface is quiet, swing soft hackles through riffle tails or nymph the cleaner lower West Branch with a sparse rig. Keep wading conservative near 570 cfs, avoid long pushy crossings, check flies often for algae, and leave the water immediately if thunder is close.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 571 cfs | 48.0 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.