From 30 to 200cfs

I couldn't have gone fishing recently, so I went O river after very long time(for me).

When I reached there, I was surprised. The flow of O river was the largest I'd ever seen. Almost 6times as much as usual(from 30 to 300 cfs)!

I couldn't decide the hole to try, because there was no sign of fish.

Although I first tried large pool with wooly bugger blindly, there was no bite.

I drive here and there to find the rise, so finally I found some rises and decided to fish here.
The photo's fish was only one I caught today. I caught it by midge parachute.

After that one, the fish continuing the rise had never bitten my midge fly.
Was it because of not match the hatch? or snow becoming heavily? I don't know.