Computer Modeling of Gulf Oil Dispersion

This is an interesting computer simulation of the potential spread of the gulf oil disaster throughout the Caribbean and Atlantic:

http://www.youtube.com/watch?v=nAiG-TPYIFM

This reminds me of weather-prediction models:  input some initial conditions, set up the propagation rules, and then iterate, iterate, iterate.  Of course, modeling the mathematics of the initial conditions and the propagation rules is a huge challenge.