Fallstreak holes form in altostratus or cirrostratus clouds when ice crystals forming from supercooled droplets create holes through the cloud layer as they trigger a chain reaction of freezing.
[📹 BlacktipH Fishing]
https://video.nostr.build/4431cabab355a046a6f846b2792de828cfa31bbf67174ab5b46148ae5896f274.mp4