Some developers, such as Fenix and PMDG, have stated that the Weather Radar “API” is either not implemented or insufficient.
However, with the 9/29 Development Update, they seem to think they have already “fixed”.
[WISHES – LIFETIME]
Implement Weather and Terrain APIs - Fixed
Open Up The Weather System To 3rd Party Devs - Not Planned
[ACTIVE DEVELOPMENT]
Nothing about this.
Implement Weather and Terrain APIs" used to be labeled “SU10+”.
What happened to the “+”?
Anyway, Development Update is often inaccurate, so I actually hope they are continuing. 