Hey Brian, I have a little suggestion.. is it at all possible for you to implement custom local radar map boundaries? Seeing how the Wunderground radar API makes this possible with their maxlon/maxlat and minlon/minlat strings, I thought it was a good idea
Here's some examples of custom maps I did:
State view
Local view
..or maybe even a neighborhood view
The tool I used to determine the max and min longitude and latitude information was this little site:
http://www.birdtheme.org/useful/googletool.htmlIt's just a suggestion, and if it's possible to implement this, I would love to see it!