Sorry, underfire, but ATIS winds are magnetic.
Sorry, but that is not correct. ATIS winds are broadcast true.
That being said, there are 2 types of ATIS broadcast:
Data link-automatic terminal information service (D-ATIS). The provision of ATIS via data link through ACARS
Voice-automatic terminal information service (Voice-ATIS). The provision of ATIS by means of continued and repetetive voice broadcasts.
in the case of D-ATIS, it is broadcast in true
In the case of voice-ATIS, this is broadcast in magnetic.
This goes back to the saying, if it can be read it is true, if it is heard it is magnetic.
Here is a quick reference:
https://www.skybrary.aero/index.php/...city_Reporting