Never, never, ever underestimate the power of water.
www.youtube.com/watch?v=Z3pp-kFNnbswww.youtube.com/watch?v=YF3BtgemJcoAnd when the tide suddenly, rapidly and inexplicitly goes out - run, run, run for higher ground because what goes out, comes back in with a vengeance.
And also remember that more people are killed in hurricanes by the storm surge (dying by drowning) than by wind.
Not long ago I watched a documentary about the bout the Galveston hurricane and one on the 1938 New England hurricane.
The PBS show American Experience also had a great documentary about the Johnstown flood, a devastating flood as the result of a dam break based in the book by David McCullough and narrated by him.