If you haven’t already, you could give these weather presets a shot. There are 2 specifically for gliders in here (Soaring Ridge and Soaring Thermals) but the others may be interesting too.
Not sure if since Asobo added gliders these work in the same way now or are even necessary/compatible but I don’t see why not.
I have a bunch more presets for gliders but honestly unsure where they came from now. Could be part of this pack but they just didn’t update the store page description. I have Soaring - Cross Country and a few others, IIRC. Could have come from the GF Discus.
Also this thread may be of interest to you: