Upper Delaware, New York
West Branch Delaware Fishing Report: August 11, 2026
The West Branch is in good shape after yesterday's rain bump, with 689 cfs, 50.0 F water, good reported clarity, and the best dry-fly window still on the cold upper tailwater.
- Status
- good
- Flow trend
- falling
- Best window
- Midday on the upper West Branch, then evening only if water and weather stay settled
- Best methods
- dry flies, wet flies, nymphs
Quick Summary
The West Branch remains the best New York trout option in this active report set, and the 9 AM refresh found a useful same-day Upper Delaware source update. USGS showed 689 cfs, 3.12 feet, and 50.0 F at Hale Eddy during the refresh check; the flow had bumped after yesterday's rain but is settling back this morning. Current Upper Delaware reporting describes good clarity and a practical wade-or-float level, while the cold upper tailwater remains the safest trout water. Fish the upper river for midday sulphurs and small olives, keep lower West Branch nymphing in cleaner lanes, and leave the water if afternoon thunder develops.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Cold tailwater temperature, good reported clarity, and a moderate Hale Eddy flow keep the river fishable, with careful wading still the right call |
| Flow | 689 cfs at Hale Eddy during the 9 AM refresh check |
| Gauge Height | 3.12 feet at Hale Eddy |
| Water Temp | 50.0 F at Hale Eddy |
| Clarity | Good in current Upper Delaware source reporting; not measured by the official gauge |
| Trend | Falling back after yesterday's rain bump; Hale Eddy was still near 689 cfs at the refresh check |
| Best Window | Midday on the upper West Branch for sulphurs and olives, then evening only if weather stays settled |
| Best Method | Dry flies and emergers over working fish; wet flies or nymphs in lower West Branch seams when the surface is quiet |
| Wadeability | Limited to careful edge wading, stable gravel, and conservative crossings; floating is also in play at this level |
Weather
For Hancock and Hale Eddy, the National Weather Service forecast updated near the refresh check calls for partly sunny weather after early fog, a high near 82 F, and northwest wind at 2 to 6 mph. A slight shower or thunderstorm chance is in the forecast between roughly 2 PM and 3 PM, with expected rainfall under a tenth of an inch where storms pass. The weather is workable for dry-fly fishing, but thunder should end the session until the cell is well clear.
River Notes
The main 9 AM change is the flow interpretation. The 8 AM report correctly noted that Hale Eddy was higher than yesterday, but current local context now frames the bump as rain-driven water that is dropping back this morning rather than continuing to build. At 689 cfs, the West Branch is in a useful summer tailwater range. It is not a casual cross-anywhere level, but edges, inside bends, bank cushions, and selected gravel bars can fish well if you move carefully.
The lower East Branch and Main Stem are still not the trout priority during this warm August stretch. The upper West Branch remains the starting point because the release keeps water cold enough for a responsible trout plan. Current Upper Delaware context continues to point to midday sulphurs, small olives, Isonychias, Light Cahills, and tan caddis. Algae can make heavier subsurface work frustrating up top, so reserve most nymphing for cleaner lower West Branch seams and do not grind through salad if fish are not feeding.
Hatch Activity
Official gauges do not report hatches. Current Upper Delaware source context supports late-summer sulphurs, small Blue Winged Olives, Isonychias, Light Cahills, tan caddis, and terrestrials. Expect the more dependable surface work to be on the cold upper West Branch, especially around midday and under softer light.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur | 16-20 | Primary upper-tailwater hatch target around Deposit and the upper West Branch |
| Blue Winged Olive | 16-24 | Small olives remain mixed in; use the smaller end for picky fish and the larger end when darker olives are obvious |
| Isonychia | 10-14 | Good searching dry, wet fly, or nymph profile in broken current and faster banks |
| Light Cahill | 14-16 | Useful in low light and faster riffle seams if evening weather stays safe |
| Tan Caddis | 16-20 | Pupa, soft hackles, and adults can cover broken water before steady rises develop |
| Ants and Beetles | 14-20 | Fish tight to shade, grass banks, and undercuts during quiet sunny stretches |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Sulphur Sparkle Dun, Comparadun, or CDC Emerger | 16-20 | Main match for upper West Branch midday feeders |
| Dry | BWO Comparadun, CDC Olive, or Rusty Spinner | 18-24 | Use for small riseforms during clouds, fog, or mixed sulphur-olive activity |
| Dry | Dark BWO or larger olive dun | 16-18 | Carry a few larger olives for the darker Baetis noted in current Upper Delaware context |
| Dry | Isonychia Parachute or Light Cahill | 10-16 | Searching profile for riffles, broken water, and low-light seams |
| Dry | Ant or Beetle | 14-20 | Bank and shade option when trout are not locked on mayflies |
| Wet | Soft Hackle Sulphur or Soft Hackle Pheasant Tail | 14-18 | Swing just under the film when fish take emergers below the surface |
| Nymph | Pheasant Tail, Frenchie, or Perdigon | 14-18 | Use in lower West Branch seams or cleaner lanes where algae is less limiting |
| Nymph | Isonychia Nymph | 10-12 | Fish riffle edges and faster banks with a controlled swing at the end |
| Streamer | Small Sculpin or Woolly Bugger | 6-10 | Backup for shaded banks or briefly stained edges after rain; leave the water for thunder |
Tactics
Start by watching the upper river before stepping in. If fish are rising, use a single dry or dry with an emerger dropper on a long leader and make short, accurate presentations from the bank side. Clean algae from flies often. If the surface is quiet, move to walking-speed lower West Branch seams with a soft hackle, small nymph, or dry-dropper rather than forcing a heavy rig through the upper algae. Keep the wading plan conservative even though the river is fishable; 689 cfs still has enough push to make casual crossings a bad choice. Stop fishing immediately if lightning is close.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 689 cfs | 50.0 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 hatch, method, clarity, and safety context.