The entity known as Noah made an appearance in the sphere of influence circa 1940's. I don't presently know if he's still alive, nor where he is. (It does not matter anyway). If memory serves me correctly there were three floods... circa 3500BC and two around 10000BC.
The floods were designed to remove man-kind from his own devices, and place his reliance on the Creator; in effect reconnecting mankind with that which he had lost. The flood only occured after repeated warnings went unheeded.
The promise that there would be no more floods is in indeed correct. Fire is next and will likewise place mankind in a position in which his own devices are removed, and reliance must be placed with the creator again... a further reconnecting... again.