Item Description: Medicine Lake, Jasper National Park, Alberta Canada As an afternoon thunderstorm broke, a rainbow appeared over the eastern side of the lake. Photo Credit: donated by Rick McEwan photos.nwf.org/
This is a rare meteorological phenomenon called a skypunch. When people see these, they think it’s the end of the world. Ice crystals form above the high-altitude cirro-cumulo-stratus clouds, then fall downward, punching a hole in the cloud cover.