Asperatus clouds over Illinois, US. The Royal Meteorological Society would need more information about weather patterns that form so-called aspertus cloud to define it as distinct from undulatus clouds, which means wavelike in Latin THIS ONE LOKS LIKE AN EYE.. 
We used to call this mamatus clouds. No kidding. It’s caused by highly unstable air above a layer of low to medium stratus clouds. Makes the sky look like it is full of cow’s udders (mammaries).
No joke.
Ok, the eye one is spooky..
Not when you look at it sideways.