I read it in a short story anthology years ago, and have tried and failed to find it time and time again. I believe it involved a young boy and his father, set somewhere in the 1950-ish.
It was written brilliantly, and I remember vivid language describing the storm itself. It was very well written, but I don’t recall enough details about the rest of the story to identify it other than the scene with the storm, the flood, and the horse.
by Itsaboldmovecotton