Hi @stelar1967, we tried negotiating a deal with 3D S.A. company with no luck. Unfortunately, we cannot just use the data they provide in a google app, since it would most likely mean using it illegally. But as far as I know, Hellenic Met Service of Greece is upgrading their radar network and there should be some data available, most likely in the timeframe of 2026.
More info about Greek radars is available in this and this thread.