God vs. Nature?

First, to set aside a clear definition of "God". This is not easy to do, as I am sure we can find many characteristics of what is usually describe as "God". So to keep it simple, let us agree "God" is omnipotent, omnipresent, and omniscience.
Second, is the task I'll need help on. Definition of nature. No so much the question of, "What is nature?", but rather how nature exists as we know it.
1) The difference of "unnatural" and "supernatural"
2) The possibility of nature existing in a way we do not understand. (example: attempting to explain color to a blind man)
I suppose we might find issue in the world of impossibilities. That is to say, "Nature dictates possibility". We might conclude that what exists outside of nature is only impossible because of our understanding of nature it cannot possibly exist in the way we describe it. Or we might conclude that nature allows for limited possibilities, and in the manner described nature could not allow for this possibility to exist.
I would also suppose we would find that nature may not be the only dictator of possibility, but is itself subservient to a higher nature. Or perhaps that nature is subjective to change however permanent or temporary to a superseding agent.
Or could we conclude that perhaps nature as we understand it is only a portion of a whole? Perhaps our empirical findings of what nature is and how it exists is limited to a fraction?
If this is the case, would it be logical to only accept the nature our empirical belief forming mechanisms can interpret?