Inflow and release is not quite as acurate but it is close as you will get if you dont have inside info. Normaly I look at the stations upstream to determine lake rise and fall potential and then couple that with the hourly data. You can get decent info if you look at the stations upstream. But the other info, wind, temp, level, solar and even precip is pretty good. I have the lake levels to be very acurate. I usually check before i go and when i return. I can pretty much tell, based on the level on the internet, exactly where the water will be on the banks and ramps before i get there.