Astronomy Picture of the Day . A Lenticular Cloud Over Wyoming . ... 26.03.2003 . ... Lenticular clouds are typically formed by high winds over rugged terrain and are particularly apparent when few other clouds are in the sky. Lenticular clouds can take on particularly strange , layered shapes. Above , a couple stopped their car near Yellowstone National Park in Wyoming , USA to photograph this lenticular cloud behind picturesque windmills . ... Publications with words: lenticular clouds . ...