Delaware River Report: August 27, 2026

The release from Cannonsville is 549 cfs. We woke up to some scattered rain showers but not enough to bump the flows. We may have some afternoon thunderstorms so keep an eye on the radar. The cloud cover and rain could push the olives and hebes. Olives and flying ants are putting some fish in the net along with blind casting Isonychias and Cahills. The mid day sulphurs are getting a bit spotty as the hatch wanes but there still are some out there. There are some olives mixed in plus a few Isonychias and Cahills. 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 78 degrees with clouds early and thunderstorms in the afternoon. Total rainfall should be .14″. Wind will be 5 – 10 mph from the South.


John with a nice rainbow yesterday. John Loughlin photo
Dick with a good brown. John Loughlin photo
And John with a brown. John Loughlin photo

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, NY570 cfs48°
West Branch at Hale Eddy, NY648 cfs49°
East Branch at Harvard, NY200 cfs55°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY457 cfs67°
Mainstem at Lordville, NY1,230 cfs64°
Beaverkill at Cooks Falls, NY203 cfs64°
West Branch at 191 Bridge57°
West Branch at Walton (Cannonsville inflow)121 cfs66°
Cannonsville Reservoir Release549 cfs
Cannonsville Reservoir Capacity77.8%
Pepacton Reservoir Capacity88.8%

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