My Grandpa was a hydrologist and predicted river levels and would've loved this. Coney Island used to call him up to ask if there was going to be any problems. They'd offer him free tickets for his service, but he'd always turn them down since he worked for the government and technically wasn't supposed to receive gifts. My mom and my aunts and uncles would get pretty upset at that. From what I've been told, a flood like this would be hard to happen again with the dams and what not. It wouldn't take much, though, to cause Coney extensive damage. Here's some pictures I took from the flood at Coney last year.
... and a fake old one that I made that I think looks kind of cool