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The original was posted on /r/todayilearned by /u/SweetPoison2704 on 2024-07-04 13:11:45+00:00.

Original Title: TIL that there is a type of cloud called “Morning Glory clouds” that can create rolling waves in the sky, stretching for thousands of kilometers! These rare clouds appear as a rolling tube of cloud that can move at speeds of up to 60 km/h, and can even create mini-tornadoes!