Lenticular cloud, Mt. Fuji, Japan Altocumulus lenticularis is one of the more obviously 'bizarre' cloud types -- they don't occur too frequently, so when you see one, you take notice. They often form above or near mountains, as moist air flows rapidly over a rise in elevation. Mt. Fuji makes a pretty sweet base for this one. Lenticular cloud, Mt. Fuji, Japan Altocumulus lenticularis is one of the more obviously 'bizarre' cloud types -- they don't occur too frequently, so when you see one, you take notice. They often form above or near mountains, as moist air flows rapidly over a rise in elevation. Mt. Fuji makes a pretty sweet base for this one. Asperatus formation, Canterbury, New Zealand This one's so rare it doesn't even have official classification. "Undulatus asperatus" is its proposed designation, and if accepted as a new form by meteorologists, it'll be the first such addition since 1951. As of now, it's just another exa