Northern parts of the UK have been treated to the stunning sight of lenticular clouds. Matt Taylor explains how they form.

Taieri Pet is an altocumulus lenticularis, or lenticular cloud. It is a relatively rare occurrence that forms at altitudes ...

Such clouds are known for creating dramatic scenes, but this altocumulus standing lenticular (from the Latin word "Lenticularis," meaning "like a lentil") is especially striking. Here's how the ...