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.



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, NY507 cfs46°
West Branch at Hale Eddy, NY547 cfs46°
East Branch at Harvard, NY185 cfs56°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY331 cfs71°
Mainstem at Lordville, NY1,010 cfs65°
Beaverkill at Cooks Falls, NY125 cfs67°
West Branch at 191 Bridge56°
West Branch at Walton (Cannonsville inflow)123 cfs67°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity79.5%
Pepacton Reservoir Capacity87.5%

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