Delaware River Report: May 9, 2026

The river flows have dropped back a bit as the runoff subsides. The release from Cannonsville is 902 with 76 cfs spilling over the top. The Beaverkill and East Branch flows are climbing a little bit this morning. So far everything looks fine and clear. Click on the gauge links below for the latest flow data. Hendricksons, Dark Brachycentrus, and March Browns are mixed a bit on some river sections. The colder water sections may still see some blue quills and apple caddis.

Today will be 57 degrees with clouds and periods of rain. Total rainfall should be .37″. Wind will be 5 – 10 mph from the South.


Justin found some yesterday. Mike Daccurzio photo

What’s Hatching:
Dark Hendrickson – #14 – Ephemerella subvaria (male)
Light Hendrickson – #12 – Ephemerella subvaria (female)
Apple Caddis – # 16 – 18 – Brachycentrus sp.
Dark Grannom – #16 – Brachycentrus sp.
Dark Blue Wing Olive – #16 – 18 – Baetis vagans
Little Black Caddis – #18-20 – Chimarra sp.
Quill Gordon – #14 – Epeorus pluralis
Blue Quill – #16 – 18 – Paraleptophlebia adoptiva
March Brown – #10-2xl – Maccaffertium vicarium


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, NY942 cfs45°
West Branch at Hale Eddy, NY1,210 cfs44°
East Branch at Harvard, NY294 cfs47°
East Branch at Fishs Eddy, NY1,100 cfsN/A
East Branch at Hancock, NY1,490 cfs51°
Mainstem at Lordville, NY2,480 cfs50°
Beaverkill at Cooks Falls, NY678 cfs48°
West Branch at 191 Bridge45°
West Branch at Walton (Cannonsville inflow)693 cfs48°
Cannonsville Reservoir Release902 cfs
Cannonsville Reservoir Capacity100.4%
Pepacton Reservoir Capacity99.9%
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