In April 2016, I walked out of where I was volunteering, and saw this. A very cool cloud formation. I’ve only seen this a few other times, only around here(and I’ve seen a lot of places). This time I had my camera with me. At first it wasn’t much. Then over a short period of time, it grew a to be a bit a larger.
I have a shot from 2015 of a disk shaped cloud, that is a bit similar to these pictures. So after a bit of searching I found out that these are Lenticular Clouds caused by the moisture from the mountains and the turbulent sky winds. This area has a wind farm near by, and is known for its wind. Also we have days where there’s more gliders, and parachuters.