Author: Jeff White
Delaware River Report: July 30, 2022
The upper river sections fished well again with mid day sulphur hatches. The fish can be a bit picky but they are there and rising. Presentation is more inportant than exact pattern. Small sulphurs, cahills, and olives made up most of the hatch. Blind casting Isonychias has brought some fish to the net- especially early and late in the day. Sunshine, 79 degrees, and wind 10 – 15 mph from the North.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.



What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 487 cfs | 46° |
| West Branch at Hale Eddy, NY | 525 cfs | 49° |
| East Branch at Harvard, NY | 167 cfs | 62° |
| East Branch at Fish’s Eddy, NY | 271 cfs | 70° |
| Mainstem at Lordville, NY | 1,040 cfs | 70° |
| Beaverkill at Cooks Falls, NY | 117 cfs | 71° |
| West Branch at 191 Bridge | 60° | |
| West Branch at Walton (Cannonsville inflow) | 61 cfs | 65° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 70.1% | |
| Pepacton Reservoir Capacity | 82.8% |
Delaware River Report: July 29, 2022
We were hit with a few storms yesterday afternoon and some light rain this morning but most of the precipitation soaked right into the ground. The bump in flows is negligible and you won’t notice any difference from yesterday. We do have some thick fog on the water but that should burn off in a couple of hours. Small sulphurs, cahills, and olives made up most of the hatch. Isonychias worked well for some people on the lower West Branch yesterday. We’ll see sunshine early with a few clouds in the afternoon. The high will be 85 degrees with wind 5 – 10 mph from the West.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 496 cfs | 46° |
| West Branch at Hale Eddy, NY | 538 cfs | 50° |
| East Branch at Harvard, NY | 179 cfs | 62° |
| East Branch at Fish’s Eddy, NY | 296 cfs | 70° |
| Mainstem at Lordville, NY | 1,090 cfs | 69° |
| Beaverkill at Cooks Falls, NY | 135 cfs | 72° |
| West Branch at 191 Bridge | 60° | |
| West Branch at Walton (Cannonsville inflow) | 61 cfs | 68° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 70.6% | |
| Pepacton Reservoir Capacity | 83.1% |
Delaware River Report: July 28, 2022
Yesterday felt like a normal summer day with mid day dry fly action closer to the dams and some on the lower West early and late in the day. Small sulphurs, cahills, and olives made up most of the hatch. Most people are fishing the small sulphurs. Today will star off cloudy. There are some potential thunderstorms in the afternoon but hopefully they slide around us like normal. 86 degrees with wind 5 – 10 mph from the South.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 487 cfs | 46° |
| West Branch at Hale Eddy, NY | 525 cfs | 48° |
| East Branch at Harvard, NY | 165 cfs | 60° |
| East Branch at Fish’s Eddy, NY | 254 cfs | 68° |
| Mainstem at Lordville, NY | 1,000 cfs | 68° |
| Beaverkill at Cooks Falls, NY | 107 cfs | 70° |
| West Branch at 191 Bridge | 58° | |
| West Branch at Walton (Cannonsville inflow) | 64 cfs | 68° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 71.1% | |
| Pepacton Reservoir Capacity | 83.4% |
Delaware River Report: July 27, 2022
The clouds stuck around most of the day making yesterday a bit more pleasant than it has been lately. The lower West fished early while the fog was still on the water. Nymphing worked well in the afternoon. The afternoon hatches are coming off closer to the dams offering some daytime shots. Small sulphurs, cahills, and olives should be on the water. We’ve seen some caddis in the mornings. Blind casting Isonychias and cahills in the riffles has put some fish in the net. We’ll have a bit more sun today with the air temp hitting 85 degrees. Wind will be 5 – 10 mph from the South.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 487 cfs | 46° |
| West Branch at Hale Eddy, NY | 525 cfs | 47° |
| East Branch at Harvard, NY | 167 cfs | 58° |
| East Branch at Fish’s Eddy, NY | 282 cfs | 65° |
| Mainstem at Lordville, NY | 1,060 cfs | 66° |
| Beaverkill at Cooks Falls, NY | 121 cfs | 65° |
| West Branch at 191 Bridge | 55° | |
| West Branch at Walton (Cannonsville inflow) | 72 cfs | 62° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 71.6% | |
| Pepacton Reservoir Capacity | 83.9% |
Delaware River Report: July 26, 2022
A few thunderstorms passed through overnight but the west Branch flow is steady with the 500 cfs release. The Beaverkill and East Branch flows bumped up slightly but nothing really noticeable.
Today will be cooler hitting 78 degrees with a mix of clouds and sun. Wind will be 5 – 10 mph from the North. Not a bad day to be on the water. The best daytime hatching should be in the coldest water near the dams. The lower West Branch should pick up in the evening. Small sulphurs, cahills, and olives should be on the water. There are Isonychias and caddis around too.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 487 cfs | 46° |
| West Branch at Hale Eddy, NY | 534 cfs | 48° |
| East Branch at Harvard, NY | 176 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 312 cfs | 68° |
| Mainstem at Lordville, NY | 1,070 cfs | 68° |
| Beaverkill at Cooks Falls, NY | 185 cfs | 68° |
| West Branch at 191 Bridge | 58° | |
| West Branch at Walton (Cannonsville inflow) | 78 cfs | 65° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 72.1% | |
| Pepacton Reservoir Capacity | 84.2% |
Delaware River Report: July 25, 2022
We had some storms pass through overnight and woke up to some light rain this morning. So far the West Branch gauge shows the flow as a steady 500 cfs. The Beaverkill flow has bumped up slightly. If anything major changes we’ll do an update here.
Today we’ll have decent cloud cover with some rain. Total rainfall should be a non factor at .17″. There may be some storms in the afternoon with decent wind gusts and more rain but hopefully the slide around us. The air temp will hit 80 degrees. Olives, sulphurs, and cahills. If the wind does pick up nymphing or swinging wets will be a good option this afternoon.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 487 cfs | 46° |
| West Branch at Hale Eddy, NY | 529 cfs | 50° |
| East Branch at Harvard, NY | 170 cfs | 64° |
| East Branch at Fish’s Eddy, NY | 268 cfs | 72° |
| Mainstem at Lordville, NY | 1,020 cfs | 68° |
| Beaverkill at Cooks Falls, NY | 118 cfs | 74° |
| West Branch at 191 Bridge | 60° | |
| West Branch at Walton (Cannonsville inflow) | 60 cfs | 72° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 74.3% | |
| Pepacton Reservoir Capacity | 85.2% |
Delaware River Report: July 24, 2022
There was another bigger pulse of cold water out of Cannonsville overnight. There was no pulse from Pepacton on the East Branch. This larger pulse seems to be helping keep downriver a bit cooler than it was earlier in the week.
Today will be another hot, sunny day. There are some thunderstorms forecast for the evening and overnight that will bring us some lower air temps. While it’s still hot out, look for rising fish in the coldest water. Have that olive box handy, as well as your sulphurs, some large Cahills and Isos.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 966 cfs | 46° |
| West Branch at Hale Eddy, NY | 1,250 cfs | 47° |
| East Branch at Harvard, NY | 165 cfs | 62° |
| East Branch at Fish’s Eddy, NY | 247 cfs | 71° |
| Mainstem at Lordville, NY | 1,100 cfs | 68° |
| Beaverkill at Cooks Falls, NY | 99 cfs | 73° |
| West Branch at 191 Bridge | 55° | |
| West Branch at Walton (Cannonsville inflow) | 58 cfs | 67° |
| Cannonsville Reservoir Release | 976 cfs | |
| Cannonsville Reservoir Capacity | 74.3% | |
| Pepacton Reservoir Capacity | 85.2% |
Delaware River Report: July 23, 2022
We had a much bigger pulse from the Cannonsville reservoir overnight. According to the gauges, the pulse is already stopped and the levels will be dropping back. There was no pulse from Pepacton on the East Branch last night.
We’re expecting another hot, sunny day. There are some possible thunderstorms in the forecast on Monday which would bring some relief and much needed rain. While it’s still hot out, look for rising fish in the coldest water. Have that olive box handy, as well as your sulphurs, some large Cahills and Isos.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.

View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 990 cfs | 46° |
| West Branch at Hale Eddy, NY | 1,260 cfs | 47° |
| East Branch at Harvard, NY | 165 cfs | 61° |
| East Branch at Fish’s Eddy, NY | 261 cfs | 71° |
| Mainstem at Lordville, NY | 1,120 cfs | 69° |
| Beaverkill at Cooks Falls, NY | 105 cfs | 72° |
| West Branch at 191 Bridge | 55° | |
| West Branch at Walton (Cannonsville inflow) | 61 cfs | 68° |
| Cannonsville Reservoir Release | 1,026 cfs | |
| Cannonsville Reservoir Capacity | 74.3% | |
| Pepacton Reservoir Capacity | 85.2% |
Delaware River Report: July 22, 2022
For the third day in a row we’re getting a pulse of cold water on both rivers. Wunderground is calling for a chance of thunderstorms in the afternoon which could bring a much needed break in the hot weather. Even so, look for fish in the colder water close to the dams. We had reports of good hatches of olives mid-day and the sulphurs continue to hatch in the evening. Keep your eye out for the occasional large Cahill.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.

View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 686 cfs | 46° |
| West Branch at Hale Eddy, NY | 705 cfs | 47° |
| East Branch at Harvard, NY | 222 cfs | 60° |
| East Branch at Fish’s Eddy, NY | 348 cfs | 71° |
| Mainstem at Lordville, NY | 1,020 cfs | 76° |
| Beaverkill at Cooks Falls, NY | 110 cfs | 72° |
| West Branch at 191 Bridge | 59° | |
| West Branch at Walton (Cannonsville inflow) | 69 cfs | 68° |
| Cannonsville Reservoir Release | 699 cfs | |
| Cannonsville Reservoir Capacity | 74.9% | |
| Pepacton Reservoir Capacity | 85.5% |
Delaware River Report: July 21, 2022
NYSDEC is again releasing a 12 hour 200cfs pulse from Cannonsville and a 6 hour 100cfs pulse from Pepacton due to the high temperatures. The pulse at Cannonsville will last until 11:00am today, the Pepacton pulse has already been completed. The Lordville gauge’s temperature reading has been malfunctioning since Tuesday so it’s tough to tell if the pulse is affecting the downstream temperatures as intended. With the continued warm weather stay where it’s coolest. We’re seeing mainly Sulphurs with a few Isos.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.

View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 686 cfs | 46° |
| West Branch at Hale Eddy, NY | 705 cfs | 48° |
| East Branch at Harvard, NY | 226 cfs | 61° |
| East Branch at Fish’s Eddy, NY | 365 cfs | 72° |
| Mainstem at Lordville, NY | 1,060 cfs | N/A |
| Beaverkill at Cooks Falls, NY | 122 cfs | 73° |
| West Branch at 191 Bridge | 60° | |
| West Branch at Walton (Cannonsville inflow) | 74 cfs | 70° |
| Cannonsville Reservoir Release | 699 cfs | |
| Cannonsville Reservoir Capacity | 75.6% | |
| Pepacton Reservoir Capacity | 85.9% |
Delaware River Report: July 20, 2022
NYSDEC is releasing a 12 hour 200cfs pulse from Cannonsville and a 6 hour 100cfs pulse from Pepacton due to the expected high temperatures today. The pulse at Cannonsville will last until 11:00am today, the Pepacton pulse has already been completed. It is forecast to hit over 90° here today. Look for the coldest water and wait until it cools down in the evening. We saw sulphurs in the evening yesterday along with a handful of Iso spinners. Have a few different sulphur patterns with you since the fish can be quite particular.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 686 cfs | 46° |
| West Branch at Hale Eddy, NY | 705 cfs | 48° |
| East Branch at Harvard, NY | 229 cfs | 61° |
| East Branch at Fish’s Eddy, NY | 416 cfs | 71° |
| Mainstem at Lordville, NY | 1,100 cfs | 70° |
| Beaverkill at Cooks Falls, NY | 148 cfs | 72° |
| West Branch at 191 Bridge | 60° | |
| West Branch at Walton (Cannonsville inflow) | 87 cfs | 70° |
| Cannonsville Reservoir Release | 699 cfs | |
| Cannonsville Reservoir Capacity | 76.2% | |
| Pepacton Reservoir Capacity | 86.3% |
Delaware River Report: July 19, 2022
There was a short bout of rain yesterday evening that didn’t change the flows but it did help with the water temperatures. The next few days will be much hotter and the cooler water is certainly a good thing. With the warm weather today look for cooler water closer to the dams and after the sun drops. We’re still seeing sulphurs, small olives and the occasional Iso.
The East Branch at Fishs Eddy, the Beaverkill at Cooks Falls, and the Mainstem at Lordville all peaked over 70 degrees yesterday. It’s time to give these sections a break until we get cooler temps.
What’s Hatching:
Slate Drake – 12-2xl – 12- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – E. vitreus (male), E. invaria, Stenacron spp.
Dark Blue Wing Olive – #18 – 20 – deficiens, lata
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.
Yellow Sally Stonefly – #14 – Isoperla spp.
Tan Spotted Sedge #16 – 18 – Hydropsyche sp.
View the current local weather conditions.
| Click on any gauge for the most recent data: | ||
|---|---|---|
| West Branch at Stilesville, NY | 496 cfs | 46° |
| West Branch at Hale Eddy, NY | 534 cfs | 49° |
| East Branch at Harvard, NY | 179 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 312 cfs | 68° |
| Mainstem at Lordville, NY | 1,090 cfs | 67° |
| Beaverkill at Cooks Falls, NY | 159 cfs | 69° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 92 cfs | 70° |
| Cannonsville Reservoir Release | 500 cfs | |
| Cannonsville Reservoir Capacity | 76.7% | |
| Pepacton Reservoir Capacity | 86.5% |