Delaware River Report: September 2, 2026

The release from Cannonsville has been cut back to 450 cfs. We came through yesterdays stoms fine and the rivers look good this morning. We should see just under .5″ today with the potential of another inch overnight. Hopefully tonights storms slide around us. If anything changes dramatically we’ll post an update. click on the gauge links below for the latest flow information. And keep an eye on the radar. Some river sections had decent flying ants yesterday and the Isos seem to be picking up a bit. The last of the sulphurs in Deposit have been sporadic and unpredictable but some people have been finding a few fish on them. There are a few Isonychias and Cahills in the evening along with some hebes. The ants have been around – not in big numbers but they’re here. 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 70 degrees with some rain showers. Total rainfall during the day should be .38″. Wind will be 5-10 mph from the South.


Dave with a good start to September. Jim Stabile photo
Sean Witman with a release yesterday

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, NY475 cfs49°
West Branch at Hale Eddy, NY586 cfs53°
East Branch at Harvard, NY187 cfs55°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY854 cfs65°
Mainstem at Lordville, NY1,710 cfs63°
Beaverkill at Cooks Falls, NY409 cfs64°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)166 cfs67°
Cannonsville Reservoir Release450 cfs
Cannonsville Reservoir Capacity76.7%
Pepacton Reservoir Capacity87.2%

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