I love your app and website, by far it is one of the best weather resources on the Internet.
However, I do not use Windy for radar. In the U.S. the images on Windy are poor, it frequently doesn't show precipitation when it is occurring. Snow is often not shown.
There are much better sites for looking at weather radar. I know Windy can do better with this.
In what area of the US do you get an issue with the rain radar ?