Delaware River Report: September 18, 2026

The release from Cannonsville is 475 cfs. The river flows bumped slightly from yesterdays rain but not enough to warrant any plan changes for today. We had some good reports of olives and ants yesterday. Hopefully the clouds stick around longer than forecasted and we see some of the same action today. The West Branch is at a good level for wading and floating. There have been tiny olives on some sections and a few Cahills, Isonychias, and hebes. The hatching should be less spotty as the flows drop and the nights get cooler. Streamers and nymphs are good bets early and late in the day. The West Branch has a greenish tint to it that is likely the reservoir turning. The fish and bugs don’t mind it and its actually better for streamer fishing

Today will be 74 degrees with clouds early turning partly cloudy in the afternoon. Wind will be 10 – 15 mph from the North.


Mike with a nice one on a dry yesterday. Mike Chain 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, NY467 cfs51°
West Branch at Hale Eddy, NY689 cfs55°
East Branch at Harvard, NY229 cfs53°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY645 cfs62°
Mainstem at Lordville, NY1,620 cfs62°
Beaverkill at Cooks Falls, NY253 cfs62°
West Branch at 191 Bridge59°
West Branch at Walton (Cannonsville inflow)359 cfs63°
Cannonsville Reservoir Release 475 cfs
Cannonsville Reservoir Capacity76.1%
Pepacton Reservoir Capacity83.6%

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