[SSE] Weather-Driven Variable River Volume (more CFS when raining, spring)

[gaoptimize]

I don't understand how Skyrim graphics routines fills rivers, so this may not be possible, but it would be nice if the rivers would have more volume when it is raining and in the spring when the snow would be melting. Imagine the Merced river running through Yosemite being like the Whiterun river: https://www.californiawhitewater.com/rivers/merced/flows/