Jeff White – The Delaware River Club

Author: Jeff White

July 18, 2026

Delaware River Report: July 18, 2026

The release from Cannonsville is 500 cfs. We should get some much needed rain this afternoon. Wunderground is calling for 1/2″ but there may be more localized if we get hit with some thunderstorms. Keep an eye on the radar this afternoon. Sulphurs, Cahills, Isonychias, olives, and some caddis are all hatching in some numbers. The daytime sulphurs are hatching in Deposit mixed with some olives and a few Isonychias. Stick to the lower West if you want to nymph. The algae has been bad up top making it a dry fly only game.

Today will be 80 degrees and partly cloudy with possible thunderstorms. Wind will be 10 – 15 mph from the Southwest.

What’s Hatching:
Dark Blue Wing Olive – #16 – 18 – Baetis vagans
Sulphur – 16 – 20 – Ephemerella dorothea
Tan Caddis – #16 – 20 – Hydrosyche sp
Light Cahill – #14 – Epeorus vitreus, Ephemerella invaria, Stenacron spp.
Slate Drake – #12-2xl – 12 – Isonychia bicolor

Click on the gauge links below for the latest flow information.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	507 cfs	46°
West Branch at Hale Eddy, NY	547 cfs	47°
East Branch at Harvard, NY	182 cfs	58°
East Branch at Fishs Eddy, NY	N/A	N/A
East Branch at Hancock, NY	314 cfs	71°
Mainstem at Lordville, NY	984 cfs	66°
Beaverkill at Cooks Falls, NY	115 cfs	68°
West Branch at 191 Bridge		57°
West Branch at Walton (Cannonsville inflow)	111 cfs	69°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	78.9%
Pepacton Reservoir Capacity	87.1%

July 17, 2026

Delaware River Report: July 17, 2026

The release from Cannonsville is 500 cfs. So far today is way less smokey than yesterday. We may see some patches of smoke or haze move through but it should be nothing like we’ve had over the last two days. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. There are some tiny olives mixed with the sulphurs in Deposit so keep an eye out for those. Stick to the lower West if you want to nymph. The algae has been bad up top making it a dry fly game.

Today will be 81 degrees and partly cloudy. Wind will be 5 – 10 mph from the North.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	507 cfs	46°
West Branch at Hale Eddy, NY	547 cfs	46°
East Branch at Harvard, NY	185 cfs	56°
East Branch at Fishs Eddy, NY	N/A	N/A
East Branch at Hancock, NY	331 cfs	71°
Mainstem at Lordville, NY	1,010 cfs	65°
Beaverkill at Cooks Falls, NY	125 cfs	67°
West Branch at 191 Bridge		56°
West Branch at Walton (Cannonsville inflow)	123 cfs	67°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	79.5%
Pepacton Reservoir Capacity	87.5%

July 16, 2026

Delaware River Report: July 16, 2026

The release from Cannonsville is 500 cfs. It’s going to be cooler today only hitting 84 degrees. The smoke / haze is back giving the sky an odd glow and blocking a lot of the sunshine. You can smell the smoke at times. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. There are some tiny olives mixed with the sulphurs in Deposit so keep an eye out for those. Stick to the lower West if you want to nymph. The algae has been bad up top making it a dry fly game.

Today will be 84 degrees with some clouds early and clearing a bit in the afternoon. Wind will be 10 – 20 mph from the North.

Carter with his first dry fly fish. John Loughlin photo

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	516 cfs	46°
West Branch at Hale Eddy, NY	552 cfs	46°
East Branch at Harvard, NY	187 cfs	57°
East Branch at Fishs Eddy, NY	334 cfs	N/A
East Branch at Hancock, NY	360 cfs	77°
Mainstem at Lordville, NY	1,040 cfs	69°
Beaverkill at Cooks Falls, NY	141 cfs	73°
West Branch at 191 Bridge		60°
West Branch at Walton (Cannonsville inflow)	145 cfs	74°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	80.6%
Pepacton Reservoir Capacity	88.1%

July 15, 2026

Delaware River Report: July 15, 2026

They pulsed Cannonsville up to 850 cfs last night but it is already dropping back to 500 cfs. It’s going to be a hot one again. Fish early or late and avoid the midday heat if possible. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. There are some tiny olives mixed with the sulphurs in Deposit so keep an eye out for those. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch. The heat should break over the weekend.

Today will be 90 degrees with a mix of sun and clouds. Wind will be 10 – 20 mph from the North.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	825 cfs	46°
West Branch at Hale Eddy, NY	855 cfs	46°
East Branch at Harvard, NY	190 cfs	62°
East Branch at Fishs Eddy, NY	334 cfs	N/A
East Branch at Hancock, NY	360 cfs	77°
Mainstem at Lordville, NY	1,080 cfs	69°
Beaverkill at Cooks Falls, NY	141 cfs	73°
West Branch at 191 Bridge		60°
West Branch at Walton (Cannonsville inflow)	145 cfs	74°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	80.6%
Pepacton Reservoir Capacity	88.1%

July 14, 2026

Delaware River Report: July 14, 2026

They pulsed Cannonsville up to 900 cfs again last night but it is already dropping back to 500 cfs. Today is going to be hot. Fish early or late and avoid the midday heat if possible. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. There are some tiny olives mixed with the sulphurs in Deposit so keep an eye out for those. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 95 degrees with abundant sunshine. Wind will be 10 – 15 mph from the West.

Claudia found one in the sunshine. Peyton Van der Linden photo

Sang with a nice one in the dark. Peyton Van der Linden photo

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	838 cfs	45°
West Branch at Hale Eddy, NY	939 cfs	46°
East Branch at Harvard, NY	195 cfs	60°
East Branch at Fishs Eddy, NY	346 cfs	N/A
East Branch at Hancock, NY	378 cfs	74°
Mainstem at Lordville, NY	1,120 cfs	69°
Beaverkill at Cooks Falls, NY	149 cfs	70°
West Branch at 191 Bridge		57°
West Branch at Walton (Cannonsville inflow)	159 cfs	70°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	81.3%
Pepacton Reservoir Capacity	88.3%

July 13, 2026

Delaware River Report: July 13, 2026

They pulsed Cannonsville up to 608 cfs again last night but it is already dropping back to 500 cfs. The heat wave is back. Go to the coldest water for daytime dry fly action. If you want to nymph or swing wets stay a little lower to avoid the algae in Deposit. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. There are some tiny olives mixed with the sulphurs in Deposit so keep an eye out for those. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 86 degrees with sunshine and clouds mixed. Wind will be 5 – 10 mph from the South.

Lenny taking advantage of first light. Sean Witman photo

Andrew with one in yesterdays sunshine. Peyton Van der Linden photo

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	608 cfs	45°
West Branch at Hale Eddy, NY	653 cfs	45°
East Branch at Harvard, NY	200 cfs	60°
East Branch at Fishs Eddy, NY	370 cfs	N/A
East Branch at Hancock, NY	410 cfs	74°
Mainstem at Lordville, NY	1,110 cfs	69°
Beaverkill at Cooks Falls, NY	161 cfs	69°
West Branch at 191 Bridge		58°
West Branch at Walton (Cannonsville inflow)	174 cfs	70°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	82.8%
Pepacton Reservoir Capacity	89.2%

July 12, 2026

Delaware River Report: July 12, 2026

They pulsed Cannonsville up to 608 cfs last night but it is already dropping back to 500 cfs. We had a brief but heavy rain shower yesterday afternoon but the rain soaked right in to the ground. We’re in the normal Summer program now so the fishing hasn’t changed. Go to the coldest water for daytime dry fly action. If you want to nymph or swing wets stay a little lower to avoid the algae in Deposit. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 86 degrees and sunny. Wind will be light and variable.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	608 cfs	45°
West Branch at Hale Eddy, NY	653 cfs	46°
East Branch at Harvard, NY	211 cfs	58°
East Branch at Fishs Eddy, NY	405 cfs	N/A
East Branch at Hancock, NY	450 cfs	73°
Mainstem at Lordville, NY	1,160 cfs	68°
Beaverkill at Cooks Falls, NY	177 cfs	68°
West Branch at 191 Bridge		57°
West Branch at Walton (Cannonsville inflow)	197 cfs	69°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	82.8%
Pepacton Reservoir Capacity	89.2%

July 11, 2026

Delaware River Report: July 11, 2026

The release from Cannonsville is 500 cfs. It looks like they pulsed the release overnight but we are dropping back to normal this morning. We’re in the Summer weather pattern where they are saying a chance of thunderstorms every afternoon. So far they haven’t materialized but it’s worth packing a raincoat. Look to the coldest water for daytime dry fly action. If you want to nymph or swing wets stay a little lower to avoid the algae in Deposit. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 84 degrees with sunshine and clouds mixed. There is a chance of a stray shower or thunderstorm. Wind will be light and variable.

Tim Glynn getting artsy with his releases yesterday

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	598 cfs	45°
West Branch at Hale Eddy, NY	653 cfs	48°
East Branch at Harvard, NY	221 cfs	59°
East Branch at Fishs Eddy, NY	441 cfs	N/A
East Branch at Hancock, NY	493 cfs	73°
Mainstem at Lordville, NY	1,230 cfs	69°
Beaverkill at Cooks Falls, NY	199 cfs	69°
West Branch at 191 Bridge		57°
West Branch at Walton (Cannonsville inflow)	228 cfs	70°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	82.8%
Pepacton Reservoir Capacity	89.2%

July 10, 2026

Delaware River Report: July 10, 2026

The release from Cannonsville is 500 cfs. Yesterday’s thunderstorms never materialized so we’re starting off today about the same as yesterday. Wunderground is calling for some clouds today but it’s pretty sunny this morning. The best daytime action will be closer to the dams in the coldest water. If you want to nymph or swing wets stay a little lower to avoid the algae in Deposit. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 82 degrees and cloudy. There is a chance of a stray shower or thunderstorm. Wind will be 5 – 10 mph from the North.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	507 cfs	45°
West Branch at Hale Eddy, NY	557 cfs	48°
East Branch at Harvard, NY	238 cfs	61°
East Branch at Fishs Eddy, NY	505 cfs	N/A
East Branch at Hancock, NY	554 cfs	75°
Mainstem at Lordville, NY	1,300 cfs	70°
Beaverkill at Cooks Falls, NY	229 cfs	70°
West Branch at 191 Bridge		57°
West Branch at Walton (Cannonsville inflow)	258 cfs	71°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	82.9%
Pepacton Reservoir Capacity	89.4%

July 9, 2026

Delaware River Report: July 9, 2026

The release from Cannonsville is 500 cfs. We’ll see some sun this morning with more clouds rolling in this afternoon. There is a slight chance of some showers so pack a raincoat just in case. We’re in the normal Summer conditions now so the fishing is pretty steady. Head to the coldest water for the best shot at dry flies during the day. Nymphing or swinging wets will be the best bets early. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 87 degrees and partly to mostly cloudy. There is a chance of a stray shower or thunderstorm. Wind will be 5 – 10 mph from the South.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	507 cfs	45°
West Branch at Hale Eddy, NY	557 cfs	48°
East Branch at Harvard, NY	260 cfs	61°
East Branch at Fishs Eddy, NY	586 cfs	N/A
East Branch at Hancock, NY	662 cfs	71°
Mainstem at Lordville, NY	1,430 cfs	69°
Beaverkill at Cooks Falls, NY	278 cfs	68°
West Branch at 191 Bridge		59°
West Branch at Walton (Cannonsville inflow)	320 cfs	70°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	83.1%
Pepacton Reservoir Capacity	89.5%

July 8, 2026

Delaware River Report: July 8, 2026

The release from Cannonsville is 500 cfs. Once again the storms slid around us and the West Branch is in great shape. We had a little rain in the evening but not enough to even need a raincoat. Nymphing or swinging wets will be the best bets early. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch. Head to the colder water for the best daytime hatching.

Today will be 85 degrees with fog in the morning and sunshine. Wind will be light and variable.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	516 cfs	45°
West Branch at Hale Eddy, NY	561 cfs	48°
East Branch at Harvard, NY	304 cfs	58°
East Branch at Fishs Eddy, NY	754 cfs	N/A
East Branch at Hancock, NY	875 cfs	67°
Mainstem at Lordville, NY	1,710 cfs	65°
Beaverkill at Cooks Falls, NY	382 cfs	64°
West Branch at 191 Bridge		56°
West Branch at Walton (Cannonsville inflow)	433 cfs	67°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	83.3%
Pepacton Reservoir Capacity	89.7%

July 7, 2026

Delaware River Report: July 7, 2026

The release from Cannonsville is 500 cfs. The West Branch is clearand at a decent level for wading and floating. We have a little rain coming down this morning but not enough to change anything. The East Branch and Beaverkill were hit with more rain and the flows are still up and off color. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch. Head to the colder water for the best hatching.

Today will be 70 degrees with clouds. Wind will be light and variable.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY	516 cfs	46°
West Branch at Hale Eddy, NY	571 cfs	48°
East Branch at Harvard, NY	692 cfs	61°
East Branch at Fishs Eddy, NY	1,090 cfs	N/A
East Branch at Hancock, NY	1,320 cfs	67°
Mainstem at Lordville, NY	2,250 cfs	65°
Beaverkill at Cooks Falls, NY	592 cfs	64°
West Branch at 191 Bridge		55°
West Branch at Walton (Cannonsville inflow)	506 cfs	67°
Cannonsville Reservoir Release	500 cfs
Cannonsville Reservoir Capacity	83.2%
Pepacton Reservoir Capacity	89.7%