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

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, NY608 cfs45°
West Branch at Hale Eddy, NY653 cfs45°
East Branch at Harvard, NY200 cfs60°
East Branch at Fishs Eddy, NY370 cfsN/A
East Branch at Hancock, NY410 cfs74°
Mainstem at Lordville, NY1,110 cfs69°
Beaverkill at Cooks Falls, NY161 cfs69°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)174 cfs70°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity82.8%
Pepacton Reservoir Capacity89.2%

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