As Heard on WTOP
There is an app for that if you have an iPhone. It's the NOAA Hi-Def Radar app from GeoTerrestrial. The description on the App Store page: "Simple yet powerful app for viewing real-time animated weather radar images in vivid color on a highly responsive interactive map, with higher resolution images than any other radar app in the appstore." It is a paid app $1.99, designed for both iPhone and iPad.