Author: Jeff White
Delaware River Report: September 3, 2022
The release from Cannonsville has been dropped again. The flow at stilesville is 677 and falling. Hopefully it levels out between 500 – 650 cfs. We’re still mostly seeing small blue wing olives on the water. there are cahill / stenos and a few small sulphurs in the mix. Isonychias, yellow sallies, and flying ants are definitely on the menu too. There are some tricos around so keep your eyes open for risers mid morning in the big pools. Today has good potential with the air temp hitting 79 degrees and cloudy skies. Wind will be 5 – 10 mph from the South.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.

What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 677 cfs | 50° |
| West Branch at Hale Eddy, NY | 943 cfs | 50° |
| East Branch at Harvard, NY | 137 cfs | 57° |
| East Branch at Fish’s Eddy, NY | 208 cfs | 62° |
| Mainstem at Lordville, NY | 1,270 cfs | 60° |
| Beaverkill at Cooks Falls, NY | 65 cfs | 65° |
| West Branch at 191 Bridge | 52° | |
| West Branch at Walton (Cannonsville inflow) | 70 cfs | 57° |
| Cannonsville Reservoir Release | 650 cfs | |
| Cannonsville Reservoir Capacity | 47.5% | |
| Pepacton Reservoir Capacity | 70.6% |
Delaware River Report: September 2, 2022
The release from Cannonsville has been adjusted slightly down bringing the flow at Stilesville to 919 cfs. You still have to choose your wade spots carefully at this level but there are spots that will work. Small blue wing olives are still making up the bulk of the mayflies we’re seeing on the water. Make sure to have a few Cahill / stenos, small, sulphurs, Isonychias, yellow sallies, and flying ants in your box. We’re coming off a very cool night and the air temp will only climb to 79 degrees today. Sunny with light and variable wind.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.

What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 919 cfs | 50° |
| West Branch at Hale Eddy, NY | 962 cfs | 50° |
| East Branch at Harvard, NY | 143 cfs | 57° |
| East Branch at Fish’s Eddy, NY | 228 cfs | 63° |
| Mainstem at Lordville, NY | 1,540 cfs | 59° |
| Beaverkill at Cooks Falls, NY | 74 cfs | 63° |
| West Branch at 191 Bridge | 50° | |
| West Branch at Walton (Cannonsville inflow) | 93 cfs | 58° |
| Cannonsville Reservoir Release | 925 cfs | |
| Cannonsville Reservoir Capacity | 48.3% | |
| Pepacton Reservoir Capacity | 71% |
Delaware River Report: September 1, 2022
The release from Cannonsville has been increased to 1,184 cfs. This will make wading a little more difficult on the West Branch. Make sure to chose your wade spots carefully and check the gauge before you head out. We’ll post an update if the release changes. Small blue wing olives are still making up the bulk of the mayflies we’re seeing on the water. Make sure to have a few Cahill / stenos, small, sulphurs, Isonychias, yellow sallies, and flying ants in your box. Today will be another temperate day with sun and clouds. Wind will be 10 – 15 mph from the Northwest.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.

What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 1,120 cfs | 50° |
| West Branch at Hale Eddy, NY | 1,170 cfs | 50° |
| East Branch at Harvard, NY | 153 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 291 cfs | 65° |
| Mainstem at Lordville, NY | 1,140 cfs | 64° |
| Beaverkill at Cooks Falls, NY | 98 cfs | 66° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 166 cfs | N/A° |
| Cannonsville Reservoir Release | 1,184 cfs | |
| Cannonsville Reservoir Capacity | 48.9% | |
| Pepacton Reservoir Capacity | 71.3% |
Delaware River Report: August 31, 2022
We finally go the with some storms that added some much needed water to the rivers. The West Branch at Stilesville is a flat 650 cfs and the flow at Hale Eddy is 819 cfs and falling. The West Branch out front has a very faint tint this morning but visibility is not an issue. There are a lot of small blue wing olives on the building this morning. Those will still be the main mayflies hatching. Cahill / stenos, small, sulphurs, Isonychias, yellow sallies, and flying ants need a place in your box today. Today will be much cooler hitting 76 degrees with sun and clouds. Wind will be 10 – 15 mph from the North.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 649 cfs | 47° |
| West Branch at Hale Eddy, NY | 819 cfs | 54° |
| East Branch at Harvard, NY | 209 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 386 cfs | 66° |
| Mainstem at Lordville, NY | 1,610 cfs | 64° |
| Beaverkill at Cooks Falls, NY | 152 cfs | 69° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 293 cfs | N/A° |
| Cannonsville Reservoir Release | 650 cfs | |
| Cannonsville Reservoir Capacity | 49.3% | |
| Pepacton Reservoir Capacity | 71.5% |
Delaware River Report: August 30, 2022
The release from Cannonsville was dropped to 659 yesterday and increased to 950 cfs overnight. Again. Right now the flow is steady at Stilesville. For the latest flow information click on the Stilesville gauge link below. Yesterday was hot when the sun popped out. There were some flushes of olives mixed with a few sulphurs and light cahills / stenos. We are also finding some yellow sallies on the building so they are around in decent numbers. In between hatches some people were doing well fishing Isonychia dry droppers in the riffles. And definitely have a few flying ants in your box. Today will be 83 degrees with potential thunderstorms. Keep an eye on the radar to see if they’ll slide around us like normal or if we’ll see some rain. Total rainfall should less than 1/2″. Wind 5 – 10 mph from the South.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.



What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 919 cfs | 47° |
| West Branch at Hale Eddy, NY | 937 cfs | 51° |
| East Branch at Harvard, NY | 135 cfs | 62° |
| East Branch at Fish’s Eddy, NY | 183 cfs | 69° |
| Mainstem at Lordville, NY | 928 cfs | 66° |
| Beaverkill at Cooks Falls, NY | 54 cfs | 72° |
| West Branch at 191 Bridge | 59° | |
| West Branch at Walton (Cannonsville inflow) | 54 cfs | N/A° |
| Cannonsville Reservoir Release | 950 cfs | |
| Cannonsville Reservoir Capacity | 50% | |
| Pepacton Reservoir Capacity | 71.8% |
Delaware River Report: August 29, 2022
There was another quick pulse from Cannonsville overnight but the West Branch flow is already dropping at Stilesville this morning. Based on the last couple of days it should settle in the 650 cfs range. The flow on the lower West will continue to drop throughout the day. The main hatch is still the small blue wing olives. We’ve seen some Tricos around and some flying ants. A few sulphurs, cahill / stenos, and Isonychias round out the hatching. Today will hit 89 degrees with a mix of clouds and sun. Wind will be 5 – 10 mph from the South.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.

What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 47° |
| West Branch at Hale Eddy, NY | 937 cfs | 50° |
| East Branch at Harvard, NY | 137 cfs | 60° |
| East Branch at Fish’s Eddy, NY | 183 cfs | 67° |
| Mainstem at Lordville, NY | 947 cfs | 63° |
| Beaverkill at Cooks Falls, NY | 55 cfs | 70° |
| West Branch at 191 Bridge | 57° | |
| West Branch at Walton (Cannonsville inflow) | 54 cfs | N/A° |
| Cannonsville Reservoir Release | 950 cfs | |
| Cannonsville Reservoir Capacity | 52.2% | |
| Pepacton Reservoir Capacity | 72.9% |
Delaware River Report: August 28, 2022
The release from Cannonsville was dropped yesterday and then increased again last night. Again. The flow at Stilesville is a steady 907 cfs this morning. Again. The yo yo releases makes planning tougher but people are still finding fish. The main hatch is still the small blue wing olives. We’ve seen some Tricos around and some flying ants. A few sulphurs, cahill / stenos, and Isonychias round out the hatching. Today will hit 84 degrees with sunshine and a few clouds. Wind will be 5 – 10 mph from the South.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 907 cfs | 47° |
| West Branch at Hale Eddy, NY | 931 cfs | 48° |
| East Branch at Harvard, NY | 135 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 186 cfs | 66° |
| Mainstem at Lordville, NY | 928 cfs | 63° |
| Beaverkill at Cooks Falls, NY | 58 cfs | 68° |
| West Branch at 191 Bridge | 55° | |
| West Branch at Walton (Cannonsville inflow) | 54 cfs | N/A° |
| Cannonsville Reservoir Release | 950 cfs | |
| Cannonsville Reservoir Capacity | 52.2% | |
| Pepacton Reservoir Capacity | 72.9% |
Delaware River Report: August 27, 2022
The release from Cannonsville was dropped yesterday and then increased again last night. The flow at Stilesville is a steady 907 cfs this morning. That’s still decent for wading and floating. There are some tricos around in the morning with mixed reports on surface activity. Streamers have worked early and and late in the day. The main hatch has still been the small blue wing olives with a few sulphurs, cahill / stenos, and Isonychias mixed in. Today will hit 80 degrees with sunshine and a few clouds. Wind will be 5 – 10 mph from the North.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 907 cfs | 47° |
| West Branch at Hale Eddy, NY | 931 cfs | 49° |
| East Branch at Harvard, NY | 137 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 189 cfs | 67° |
| Mainstem at Lordville, NY | 937 cfs | 63° |
| Beaverkill at Cooks Falls, NY | 58 cfs | 68° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 54 cfs | N/A° |
| Cannonsville Reservoir Release | 950 cfs | |
| Cannonsville Reservoir Capacity | 52.8% | |
| Pepacton Reservoir Capacity | 73.3% |
Delaware River Report: August 26, 2022
The release from Cannonsville was increased around midnight. The flow at Stilesville is 907 cfs this morning. So far it looks like it’s leveled off but click the links below for the latest flow information. There are still places to wade at this level- just pick your spots accordingly. Small olives have still been our #1 hatch ith the last of the sulphurs. Blind casting cahills / stenos and Isonychias also put some fish in the net yesterday. It’s the time of year to have flying ants and yellow sallys in your box too. We’ll have decent cloud cover by the afternoon with a chance of showers and thunderstorms. We’ll watch how those storms track. 83 degrees with wind 5 – 10 mph from the South.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 907 cfs | 47° |
| West Branch at Hale Eddy, NY | 931 cfs | 50° |
| East Branch at Harvard, NY | 137 cfs | 61° |
| East Branch at Fish’s Eddy, NY | 194 cfs | 67° |
| Mainstem at Lordville, NY | 956 cfs | 65° |
| Beaverkill at Cooks Falls, NY | 60 cfs | 69° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 58 cfs | N/A° |
| Cannonsville Reservoir Release | 950 cfs | |
| Cannonsville Reservoir Capacity | 52.8% | |
| Pepacton Reservoir Capacity | 73.3% |
Delaware River Report: August 25, 2022
Some sections of river had a decent fall of flying ants last night. Very small ants but some got on them in the flat water. They were mixed with the small olives as the sun dropped. We also saw a handful of steno / cahills and a few Isonychias. We’re seeing some tricos out there in the mornings. We haven’t had great reports on them yet but it’s worth having a few in your box. The release from Cannonsville stayed steady overnight at a reasonable 650 cfs. Good for wading and floating. Today will be a bit warmer hitting 85 degrees with sunshine. Wind will be light and variable.
The Mainstem at Lordville, the East Branch at Fishs Eddy and the Beaverkill at Cooks Falls all peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.

What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 649 cfs | 47° |
| West Branch at Hale Eddy, NY | 645 cfs | 49° |
| East Branch at Harvard, NY | 140 cfs | 58° |
| East Branch at Fish’s Eddy, NY | 205 cfs | 66° |
| Mainstem at Lordville, NY | 966 cfs | 65° |
| Beaverkill at Cooks Falls, NY | 64 cfs | 68° |
| West Branch at 191 Bridge | 56° | |
| West Branch at Walton (Cannonsville inflow) | 66 cfs | N/A° |
| Cannonsville Reservoir Release | 525 cfs | |
| Cannonsville Reservoir Capacity | 53.4% | |
| Pepacton Reservoir Capacity | 73.6% |
Delaware River Report: August 24, 2022
They pulsed from Cannonsville around midnight and the flow at Stilesville is 722 cfs and falling. We’ll settle back into the500 cfs range. So the West Branch is in decent shape for wading and floating and the level will be dropping slowly this morning. We had some rain last night but it wasn’t enough to bump the flows. It did push small olives and most people found rising fish. It was still #18 and #22 olives for the most part although there were a few cahill / stenacrons and Isonychias on the water. Today will be sunnier hitting 82 degrees. Wind will be 5 – 10 mph from the North.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both peaked over 70 degrees yesterday. Give these sections a break until we get cooler temps.


What’s Hatching:
Slate Drake – 12- 14- Isonychia bicolor
Sulphur – #16 – 20 – E. dorothea
Light Cahill – #14 – 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 | 722 cfs | 47° |
| West Branch at Hale Eddy, NY | 931 cfs | 49° |
| East Branch at Harvard, NY | 148 cfs | 59° |
| East Branch at Fish’s Eddy, NY | 222 cfs | 66° |
| Mainstem at Lordville, NY | 879 cfs | 66° |
| Beaverkill at Cooks Falls, NY | 69 cfs | 69° |
| West Branch at 191 Bridge | 57° | |
| West Branch at Walton (Cannonsville inflow) | 45 cfs | 60° |
| Cannonsville Reservoir Release | 525 cfs | |
| Cannonsville Reservoir Capacity | 54.3% | |
| Pepacton Reservoir Capacity | 74% |
Delaware River Report: August 23, 2022
The release from Cannonsville was increased slightly and the flow at Stilesville is 515 cfs. Not a big jump so the West Branch will look pretty much the same as yesterday. We had a few brief periods of rain but it soaked into the ground The larger thunderstorms missed us. Most of our fish were caught on small olives yesterday. There are still some sulphurs around mixed with cahills and Isonychias but the fish we found were on the little olives. We have some fog this morning and should see some rain showers today. Total rainfall should be a negligible .12″. 78 degrees with wind 5 – 10 mph from the West.
The East Branch at Fishs Eddy and the Beaverkill at Cooks Falls both 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 – 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 | 513 cfs | 47° |
| West Branch at Hale Eddy, NY | 529 cfs | 50° |
| East Branch at Harvard, NY | 143 cfs | 56° |
| East Branch at Fish’s Eddy, NY | 238 cfs | 66° |
| Mainstem at Lordville, NY | 852 cfs | 65° |
| Beaverkill at Cooks Falls, NY | 74 cfs | 69° |
| West Branch at 191 Bridge | 57° | |
| West Branch at Walton (Cannonsville inflow) | 45 cfs | 60° |
| Cannonsville Reservoir Release | 525 cfs | |
| Cannonsville Reservoir Capacity | 54.5% | |
| Pepacton Reservoir Capacity | 74.3% |