Jordan Lake post flooding:
You are correct: this is not the normal hues of the river water.
I was tweaking the photo to bring out the colors of the great blue heron when I realized that with a tad bit more of “blue” I could show you much better the anger of the waves of the Haw River as it escapes the dam’s tailrace. The tweak also allows you to see the water starting to lap once again over the fishing pier which is where the heron has landed.