These are awesome visualizations of the 2005 hurricane season. I watched the full version in the smallest size available, 512 x 288 (135 MB!).

27 Storms: Arlene to Zeta

Visualizations produced by NASA/Goddard Space Flight Center Scientific Visualization Studio. I like the fact that they name all the people who worked on this animation. You can even list all the work produced by a given animator.