Sunday, 28 October 2012
Snapped out of the car window, these clouds appear to be 'lenticular clouds', not as clearly defined as some, but quite at odds with all the other clouds in the sky. In the most distant one, you can see a slight convex trail of thin cloud both before and after it. I understand these clouds are most often formed where a mass of moist air is pushed upward over a mountain or ridge. These? well, they seemed to be travelling toward the south-west, and the last big range of hills they'll have passed over would be the cleveland hills, or the North York Moors.
Usually clouds are travelling approximately eastwards here. (Lower Wharfedale).