Delaware River Report: August 22, 2025

The release from Cannonsville is 676 cfs. Once this morning’s fog burns off it will be warm and sunny out there. The extra water from the release on the West Branch will help offset the warmer air temperatures but still look for those shaded spots during the day. Make sure to have your olives ready when the sun goes down.

Today will be 79 degrees and sunny. Winds will be 5 – 10 mph from the North.

What’s Hatching:
Slate Drake – #12-2xl – 12 – Isonychia bicolor
Light Cahill – #14 – Epeorus vitreus (male), Ephemeralla rotunda, Ephemerella invaria
Pale Evening Dun – #14 – Epeorus vitreus (female)
Sulphur – #16 – 20 – Ephemerella dorothea
Dark Blue Wing Olive – #16 – 18 – Baetis spp.
Tan Caddis – #16 – 18 – Hydropsyche spp.
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.


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, NY617 cfs47°
West Branch at Hale Eddy, NY760 cfs48°
East Branch at Harvard, NY180 cfs55°
East Branch at Fishs Eddy, NY295 cfsN/A
East Branch at Hancock, NY64°
Mainstem at Lordville, NY1000 cfs60°
Beaverkill at Cooks Falls, NY99 cfs62°
West Branch at 191 Bridge54°
West Branch at Walton (Cannonsville inflow)151 cfs63°
Cannonsville Reservoir Release676 cfs
Cannonsville Reservoir Capacity76.5%
Pepacton Reservoir Capacity85.7%
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