Another post here asking about conditions reminded me of this site. Go there to look up flows for various rivers/reserviors, etc. Plug in your state and go
and after awhile, you learn what levels mean what, on the funometer. I was the local “go-to” guy it seemed, it’s just that I’m a bit ocd, but that helped predicting the following days flow, as well as knowing what the funometer gage was going to be at. Some runs drop like a rock , some ebb and flow after a good storm. Look at the feeder creeks and streams as well.