Alena was quick to tweet the picture with the following explanation: "This is called a fallstreak hole! (also known as a hole-punch cloud) They form as a plane passes through a layer of cirrocumlus or altocumulus clouds."
[Ads /]
Dave Oustad took this photo while cycling at Woodward Park Wednesday.
[Ads /]
Remember to send us your interesting photos with the #abc30insider so we can watch right along with you.