Extraordinary lens shapes are exceptionally rare lenticular clouds and are also known as wave clouds . They are hardly ever seen in the UK but were spotted by an amateur photographer in the sky above Cheshire . The cloud was first noticed on a clear night when it appeared to be moving across the sky.
Extraordinary lens shapes are exceptionally rare lenticular clouds and are also known as wave clouds . They are hardly ever seen in the UK but were spotted by an amateur photographer in the sky above Cheshire . The rippling effect is created by cooling air and the clouds are the most common explanation for UFO sightings .