This is one of the reasons. Here's some more, taken from the Pennsylvainia Fish and Boat Commision Lackawanna River July 2010 report,
I am glad to see the flows in the Upper Delaware lately. Today the West Branch at Hale Eddy is 1140 at 48 degrees, and better yet, Lordville on the Mainstem at 1420 at 60 degrees. What a great time to float! Give me a call and we'll set up a trip on the Upper West Branch.