An accessory cloud can often be seen just above Mount Teide’s summit. tweet and youtube video

----- For us in aviation lenticular clouds means bad news. It is the sign of stable perpendicular to the height of the mountain while unstable and less stable layer at the under and over it. It causes severe turbulence on the lee side of the mountain.

----- The mind blowing thing is that the cloud's visible shape is stationary while the air is moving "through" it at high speed. Condensation and vaporization happening continuously at the cloud's edges.