Delaware River Report: May 9, 2025

We woke up to some rain that should stay with us most all day. It’s not a heavy rain right now but will end up being a good amount by tonight. The release from Cannonsville is 40 cfs with roughly 3,500 cfs spilling over the top. As of 6 am the West Branch flow at Hale Eddy has actually dropped. That will change as the rain fill the feeders. The spill will also likely increase if the rain hits above the reservoir. It looks like Pepacton is also now spilling and the East Branch at Downsville flow is climbing. We have quite a bit or rain the forecast so keep an eye on the radar and the flows. There is a flood watch issued for our area. The rivers are not safe to wade. If you’re floating use your best judgement. The flows listed below are at 6 am. Click on the gauge links for the latest updates.

Today will be 51 degrees with rain. Total rainfall should be 1.2″. Wind will be 5 – 10 mph from the North.

Grady with one to the net. Sean Witman photo
Rob with a good one yesterday. Sean Swenson photo
Pat with a brown yesterday. Jeremy Shurites photo
Sam Jones found some yesterday.
James on the river yesterday. Sean Swenson photo

What’s Hatching:
Dark Hendrickson – #14 – 16 – Ephemerella subvaria (male)
Light Hendrickson – #12 – 14 – Ephemerella subvaria (female)
Blue Quill – #16 – 18 – Paraleptophlebia adoptiva
March Brown – #10-2xl – Maccaffertium vicarium
Dark Blue Wing Olive – #16 – 18 – Baetis spp.
Quill Gordon – #14 – Epeorus pleuralis
Little Black Caddis -#18 – 20 – Chimarra sp.
Apple Caddis – #16 – 20 – Light Brachycentrus
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, NY3,770 cfs54°
West Branch at Hale Eddy, NY4,780 cfs54°
East Branch at Harvard, NY971 cfs49°
East Branch at Fishs Eddy, NY2,840 cfsN/A °
Mainstem at Lordville, NY8,820 cfs54°
Beaverkill at Cooks Falls, NY1,410 cfs52°
West Branch at 191 Bridge53°
West Branch at Walton (Cannonsville inflow)1,970 cfs52°
Cannonsville Reservoir Release 40 cfs
Cannonsville Reservoir Capacity104.9%
Pepacton Reservoir Capacity99.6%
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