Want to keep a watchful eye out for the next monster hurricane? Mac OS X Tiger users might want to check out a widget called Radar In Motion.
Radar In Motion is a free Dashboard widget that grabs radar images from the Weather Channel and then displays them in an animation.
You can access radar imagery for any given city or region.
The widget has several options for displaying and updating the maps, including weather alerts and the ability to save maps for a specified period of time.
Download: Radar In Motion