Delaware River Report: August 30, 2025

The release from Cannonsville is 769 cfs. The release was most likely bumped up again to meet the 1,750 cfs flow target at Montague, NJ. The combination of the extra cold water from the release and the cooler air temps have helped the hatches. We had some fish rising midday yesterday on olives. The cloud cover certainly helped. We’ll have less wind today but more sunshine. We’re coming off a cold night so it’ll take a bit to warm up today. Olives, Isonychias, and Cahills are still around along with some Tricos and some Heptagenia.

Today will be 68 degrees with sun early and a few afternoon clouds. 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, NY710 cfs49°
West Branch at Hale Eddy, NY832 cfs48°
East Branch at Harvard, NY163 cfs52°
East Branch at Fishs Eddy, NY245 cfsN/A
East Branch at Hancock, NY61°
Mainstem at Lordville, NY1,100 cfs57°
Beaverkill at Cooks Falls, NY73 cfs58°
West Branch at 191 Bridge51°
West Branch at Walton (Cannonsville inflow)71 cfs59°
Cannonsville Reservoir Release769 cfs
Cannonsville Reservoir Capacity73%
Pepacton Reservoir Capacity82.9%
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