Updated version of the ones seen HERE.

If you want to use this, make sure the mesh is positioned at 0, 0, 0 and that you scale it up to 280 on every axis! Then make sure you rotate it so the clouds fade at the right spots during the morning and evening, I recommend changing the "Fade Horizontally Offset" parameter during this process so it's easier to set up.

I strongly recommend using the Chapter 4 TODM with these, then put down a Day Sequence device and make the cloud's opacity in there zero.

Click on the text above to download, if that doesn't work:
https://drive.google.com/file/d/1d3R0p62LNXCsuvO9TRl-FuEUT18CA-op/view?usp=drive_link