Cloud Formation Over New Zealand At Sunset.Undulatus asperatus (or alternately, asperatus) is a cloud formation, proposed in 2009 as a separate cloud classification by the founder of the Cloud Appreciation Society. If successful it will be the first cloud formation added since cirrus intortus in 1951 to the International Cloud Atlas of the World Meteorological Organization.The name translates approximately as roughened or agitated waves.
Sunset Sky: These cloud formations were so mind blowing! The before & after images are on my blog. The link is on my profile page. ► Follow me on Tumblr Sunsets. Get this photo on a canvas print at http://www.splashcanvasprints.co.uk/