Upper Delaware, New York
West Branch Delaware River Fishing Report: May 21, 2026
The West Branch is in good shape at Hale Eddy, with cool water, a lower Cannonsville release, and caddis, Hendricksons, olives, March Browns, Gray Fox, and sulphurs all worth carrying.
- Status
- good
- Flow trend
- falling
- Best window
- Morning and evening, with midday dependent on wind and light
- Best methods
- nymphs, dry flies, streamers
Quick Summary
West Branch Delaware River is in a good fishing window today. USGS showed 607 cfs and 2.96 feet at 7:45 AM, with the flow trend falling and water temperature at 46 F. Local Delaware-system context checked this morning reported a 425 cfs Cannonsville release, light rain that was not enough to move the rivers, and enough caddis to make the midday surface window worth watching. Start with nymphs until fish show, then be ready for caddis, Hendricksons, olives, March Browns, Gray Fox, or early sulphurs in softer seams.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good |
| Flow | 607 cfs at 7:45 AM |
| Gauge Height | 2.96 feet |
| Water Temp | 46 F |
| Clarity | Not reported |
| Trend | Falling |
| Best Window | Morning and evening, with midday dependent on wind and light |
| Best Method | nymphs; dry flies; streamers |
| Wadeability | Good |
Weather
For Hancock, NY, the National Weather Service forecast says: Today: Mostly cloudy, with a high near 66. North wind around 3 mph. Active NWS alerts for the point check: Frost Advisory. Plan around wind, changing light, and any showers or storms rather than assuming a full-day hatch window.
River Notes
The best starting point is water that matches the current gauge: inside seams, protected banks, riffle drop-offs, and slower buckets rather than the heaviest current. A falling trend is worth watching through the day; if the hydrograph turns sharply upward, clarity and wade safety can change before hatch timing does. Clarity was not available from an official gauge during this check, so treat it as Not reported and verify it at the access before committing to a long float or wade plan.
Hatch Activity
Current hatch guidance is based on today’s Delaware-system public report context, seasonal late-May patterns, and the official gauge/weather check.
| Hatch | Size | Notes |
|---|---|---|
| Caddis | 16-18 | Reported in good numbers; watch midday soft water and riffle edges |
| Hendrickson | 14-16 | Still present on some upper river sections |
| Blue Winged Olive | 16-18 | Clouds and cooler weather favor olive activity |
| March Brown / Gray Fox | 10-12 | Carry larger mayflies for mixed late-May activity |
| Sulphur | 14-16 | Not a primary hatch yet, but worth having for the evening box |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Elk Hair Caddis | 16-18 | Search riffle edges and soft seams when caddis show |
| Dry | Hendrickson Comparadun | 14-16 | Match lingering mayflies on the upper system |
| Dry | BWO Sparkle Dun | 16-18 | Use during cloudy olive activity |
| Dry | March Brown Parachute | 10-12 | For larger bugs in broken water |
| Nymph | Pheasant Tail | 14-18 | Mayfly nymph before hatches |
| Nymph | Caddis Pupa | 14-18 | Swing or dead drift before activity |
| Streamer | Olive Sculpin | 4-8 | Use on banks if water has color or light is low |
Tactics
Start with nymphs in defined lanes and adjust weight, depth, or leader length before changing flies. If caddis get fish looking up, simplify to a single dry or dry with an emerger/dropper and lengthen the leader. The current flow is reasonable for experienced wading, but keep crossings conservative and check the gauge again if rain develops upstream.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| WEST BRANCH DELAWARE RIVER AT HALE EDDY NY | 607 cfs | 46 F | USGS 01426500 |
Sources
Official sources checked: USGS station 01426500 and the National Weather Service forecast for the Hancock, 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, access, and method context.