From RSH Soft.com:
iWeather Pro is a program for the Mac that shows current Radar and Satellite images. You can view current images from NOAA and Weather.com. You can see national, regional, and local radar maps as well as international satellite images. Select from 300 NOAA radar sites, with six views for each image for a total of 1,800 images. Animate NOAA radar images to get an idea where the weather is heading. Use the small viewer to have a ? size image in an always-on top small window. Set your favorite images and come back to them with one click, or tile your favorites and view them at the same time on one screen. iWeather Pro is the weather program that we all have been waiting for, its simple to use yet gives you so many features.