Fished this afternoon, no luck, I am sure they bit at sunrise, just too tired.
Jimmy, here is a site that shows the 5 day forcast of average water output, they change it often, but gives you an idea. Percy's normal average output is summer is 130 cfs, they post the average output in thousands, therefore 0.1 equals 100 cfs. Right now they are releasing 1200, so it is listed as 1.2. Tomorrow it lists .5, so I guessing around noon they will shut the doors, then closed all day Tuesday, then looks like they will open 1 door for a period of time on Wednesday. If you have any questions let me know. I am pretty sure I am about 25% of the daily visitors to this page, I check it about 10 times a day even though it is only updated once a day. But with time, experience, and study of flows, you can pretty much determine if the rockfish or other game fish will be there or not just by your phone. I live off this site and the tva site when it comes to fishing below dams.
http://www-wm.lrn.usace.army.mil/hh/.../memrvrbna.txt