Mike, I have been using Weather Watcher for a long time now and I enjoy it very much.
In the past, I have used the wallpaper option all the time, but now I only want it during severe weather. Can you add some new options to the wallpaper so that it will come up when a severe weather alert is downloaded (I know you already have this part), auto update when the alert is active and then reset the wallpaper when it expires?