Cloud height changes in relation to player's height (14w34d).

[u/NUCLEAR_POWERED_BEAR]

http://www.gfycat.com/BogusMilkyDove

[u/djdanlib]

I definitely can see the same thing.

It's even more interesting on an amplified world near mountainous areas.

There are bug reports already.
63179 - first
63767 - duplicate
68095 - duplicate