"Undulatus asperatus" clouds photographed in New Zealand. http://tinyurl.com/k98j97o

http://en.m.wikipedia.org/wiki/Undulatus_asperatus

"Undulatus asperatus (or alternately, asperatus) is a cloud formation, proposed in 2009 as a separate cloud classification....The name translates approximately as "roughened or agitated waves".^"


http://tinyurl.com/kogfc27