MyRadar is a great no-frills application that displays animated weather radar around your current location, allowing you to quickly see what weather is coming your way.
The map has the standard pinch/zoom capability which allows you to smoothly zoom and pan around the United States and see what the weather is like anywhere.
MyRadar Pro shows animated weather, so you can tell if rain is headed toward or away from you, and how fast. Each frame of animation represents ten minutes.
Get MyRadar from the Marketplace for free
there is the Ad Free version, but it will cost you $1.99