https://community.windy.com/topic/8412/altocumulus-volutus-is-a-four-leaf-clover-in-the-sky
Altocumulus volutus is a four-leaf clover in the sky @ Windy Community
May 12, 2019 - As we wrote about Altocumulus and its species, the rarest is Altocumulus volutus. It is very lucky to see this species above our heads. Altocumulus volutus ...
four leaf cloverin the skyaltocumulus volutus