From The Developers...
One thing you should know about the animator is that it can take a long time to load. (It does have to load several images!) We recommend that you experiment, but we've found that it operates best when you have a 100Mz computer or faster with a T1 connection or better.

The Animation Feature
WW2010 Current Weather Products

When you choose to animate a product, you will always see a button-bar that looks like this:

The buttons each have functions -- each of which is listed below.
HELP: Provides WW2010 help to understanding the product being viewed.
FRAME BACK: Steps back one frame (without playing).
FRAME FORWARD: Steps forward one frame (without playing).
PLAY BACK: Loops through the animation backward. (reverse time)
PAUSE: Pauses the animation.
PLAY: Loops through the animation forward. (forward time)
SLOWER: Slows the frame rate of the animation. (recommended for users with slow internet connections)
FASTER: Speeds the frame rate of the animation.
DONE: Stops the animation and returns to the normal product viwer.

Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.