Here's one from New York City, along the East River on August 28:
The caption with the photo reads:
The swollen East River alongside Manhattan's East River Park after Hurricane Irene. Debris along the esplanade was evidence of the river slightly breaching. Taken early morning.See David Shankborn's Hurricane Irene Flick set for more pictures from around Manhattan.
The East River is a big river. It's right next to an even bigger river, the Hudson. Ships sail up and down the river, and it was filled up with about a day's rain.
Here's one from along Route 35 in Colonia, NJ on the same day:
I'd like to thank these two photographers for making these photos available via the Commons License.
Which should make the point that it didn't matter that there was little wind - the water was the problem, as it was in New Orleans a few years ago.