It has been so long since it last rained, I've completely forgotten what it's like.
Here's how you can watch the rain falling, all across the state:
Pay attention to rivers such as the Pit, the Feather, and the Trinity; these are the ones that supply the most important reservoirs in the state.
The Trinity is a particularly interesting case, because it has been massively engineered by humans, over the last hundred years, to divert nearly all of its water from flowing directly out into the Pacific Ocean, to instead flowing down into the Central Valley.
And here's how you can see how the major reservoirs are doing, all across the state:
The far north of California, which is the most important for the water supply, is about six million acre feet short of where it normally is.
That's a lot of water, but: the rain is falling!