It seems like the one you saw (in an open space) is due to wind streams, as you theorized, while the kind over mountains has wind waves added to the creation. The article below gives a decent rudimentary description of their formation.
Ty. It was windy on the ground. I kept watching this one expecting it to be affected, but it wasn't, so apparently I was deep in the "current" and the cloud was above it.
It seems like the one you saw (in an open space) is due to wind streams, as you theorized, while the kind over mountains has wind waves added to the creation. The article below gives a decent rudimentary description of their formation.
https://www.treehugger.com/how-lenticular-clouds-are-formed-4869052
Ty. It was windy on the ground. I kept watching this one expecting it to be affected, but it wasn't, so apparently I was deep in the "current" and the cloud was above it.