[roaddog727]

Take into account that all of the places that were hit don't rise more than 5 feet above mean sea-level. So, imagine a wall of water 20 feet high that keeps on coming and coming.

[Modernman]

Take into account that all of the places that were hit don't rise more than 5 feet above mean sea-level.

Many of the places that were hit were actually below sea-level.