i have found the difference in those 2 guages to be a good indicator. yes, there are other creeks coming in and diversions. there was 1000 difference when we did it on monday, and the rock at 57 was covered, ie a medium flow. you will need a high flow to run the falls. kannah is going as well, have fun.
seems like some of the diversions around here were not ready for the early run-off, as i have noticed some empty canals that are usually full when the runoff starts.