Source: https://www.youtube.com/watch?v=vE40Yl9BUsQ
This is a time lapse. About 2 seconds in a plane flies across the lower left, then a distrail forms inside the cloud bank, then a contrail forms outside the cloud bank.
Taken around 8AM, 8:04 file time.
Probably this plane. Around 30,000 and climbing to 36,000 at the time
