Next: Breathtaking Photos of Clouds from Space
Cloud Type: Hole Punch Cloud
Features: A large circular gap in the middle of a large veil of cirrus clouds
It forms when: Supercooled water droplets freeze and fall, evaporating as they interact with drier air, leaving a circular hole in the cloud.
Cloud karma: Meteorologists can't forecast this rare formation. Spotting one requires good luck.
Chance of spotting in a year: SlimShare this on Facebook?