I just met a man who was saved from his roof top in New Orleans. He heard pounding from under his neighbor's roof for two days, then he didn't hear it anymore.
Another neighbor had an infant. As the waters rose and their house was being submerged, they literally tied their baby to a pole and hoisted the baby up as high as they could. It was no use. This man watched helplessly as the baby drown.
He was helpless save them because the water is so polluted and toxic, filled with allegators, snakes, and sharks (yes, sharks).
Continue in prayer.