An "asperatus" cloud rolls over New Zealand's South Island in an undated picture. This apparently new class of clouds is still a mystery. Photograph courtesy Merrick DaviesExperts suspect asperatus clouds' choppy undersides may be due to strong winds
March 2013 - This cloud appeared over Royal Palm Beach, Florida moments after the announcement of the new Pope Francis of the Catholic Church. (We've also seen at least 2 horrific clouds coming out of the destruction on Clouds are all over.