Storm surges can be insane. I've never been in a hurricane, but have witnessed the aftermath. My parents had some property in coastal Mexico that got hit. When we got there to assess damages, the town's main street was essentially a giant sand dune over 2 storeys tall. The surge had basically lifted the entire beach and dumped it 2 blocks in. The town square was likewise covered in sand with all sorts of debris sticking out of it. And by debris, I mean stuff as large as a fridge.
(Regarding the property, we kind of lucked out. About a year before it hit, a hotel went up between the house and the beach, which blocked the view but had a major silver lining in terms of protecting all the houses behind it from the worst of the storm. And then speaking to the hotel owner, he said he'd spent a small fortune to build a giant concrete foundation that stretched almost a city block's length under the beach. People thought he was insane to do that, but it was literally the only waterfront building still standing, so he clearly knew what he was doing.)
