@tgebhard Hi, to get accurate (ie. meaningful) predictions of these pressure gradients (Foehn, Bise, Bora, Mistral etc.), you would rather use MOS (model output statistical) products. As I understand this is not a feature included by data source providers supporting current Windy apps (e.g. GFS, ECWMF, MeteoFrance, etc.) and would be quite complex to add, because you would need to run dataassimilation models at these selected surface observation sites. An example based on such assimilated data is for example visualized at this site:
https://www.kitewetter.at/?page_id=2682
best, Tom