At this time best radar app for mac, BUT needs work. I would wait till next version.

I’ve got about every concievable weather app out there for both ios and OS X, and this is the geekiest. In a good way. HOWEVER, there are a lot of bugs to be worked on yet, and once they get this thing off the ground and flying, it will be THE BEST.

debrisdodger about Radar Extreme - NOAA Doppler