Hello Cloudlady
I like your picture of the so-called eyebrows. I agree with Jocelyn on that classification all be it an unofficial one. Nice video you found about the phenomenon. All examples here are lenticularis shaped and in my opinion they also seem to have the outlines of what asperitas looks like. About the heights that are assumed to be near I think waves in the air can be further away from heights than you might think. And waves of air are needed for lenticularis to form in the right conditions.
Unfortunately there is no official name yet for these eyebrows. Maybe Gavin Pretor Pinney succeeds also in getting this one officially accepted by the WMO?
