Here is a picture of a Fall Streak Hole or Cavum AltoCumulus Stratiformis Perlucidous Cloud.
Altocumulus clouds are mid- altitude heap clouds.
Cavum is also known as fallstreak hole, cloud hole, skypunch cloud, hole punch cloud or cloud cavity punch is a circular gap in the spread-out cloud.
Stratiformis- means horizontal in a layer-like form.
Perlucidus means transparent by small gaps.
Date: 6th November 2020.
Time: 09:59 AM
Location: London, United Kingdom.
Photo credit: Anino Ogunjobi