It is a simple program that usually pulls up the GOES image centered on the selected city. But I have found that some of the cities I needed pulled up images for the wrong state, at least one doesnt get an image at all, and some cities are listed in the wrong state. I am lucky that my primary location gets the right map and I keep the program in my dock so I can check the cloud cover when deciding whether or not to go out for stargazing.
KC2PED about Cloud Map