The link below is a 12 megabyte animated GIF showing a forecast of Rita’s storm surge. Loading it tends to make powerful machines and web browsers complain. You probably need a gig of memory. It is totally amazing. If you decide to take the risk of loading it make browser window large first.
I have no idea how accurate that forecast is. Maybe somebody clever can convert it into a smaller movie format.
I believe that this is the output of the model discussed here, where there are some nice smaller examples of it’s output. The FTP site I found that animated GIF on was amazingly slow and quite obscure. Maybe somebody knows of a more official dependable source.