Here's a great
weather Dashboard widget that makes Apple's Weather look downright anemic. WeatherBug Local Weather
WeatherBug displays your local weather, live radar shots, current news and even alerts and warnings for your area.
Click the "Animate" button at the bottom of the screen and you're brought to a web page with the
radar animation. It would be cool if this worked within the widget, but it's hardly a deal breaker. Check it out.