Altocumulus Lenticularis clouds over Yorkshire look like UFOs on parade

‘UFO cloud’ spotted floating over UK: Dazzling picture of rare formation

Known by experts as the Altocumulus Lenticularis, but dubbed the UFO cloud by many, this formation was spotted above Farsley in West Yorkshire yesterday.

And although incredibly rare in the UK the clouds are a common sighting in the Himalayas, Andes and Rocky Mountains.

Tip: @UFOEvidenceco on Twitter

Beautiful. Not sure why they are ever mistaken for UFOs, the move ever so slowly, but these pictures are impressive.

See more in this slideshow by BBC News.  The sheep even look amused.