Lenticular Cloud Formation Above Volcan de Agua

December 01, 2014

Lenticular y volcan

Photographer: Julio Meza; Julio's Flickr site
Summary Authors: Julio Meza; Jim Foster

Shown above is a spectacular lenticular cloud formation as observed above the flanks of Volcan de Agua in Guatemala. Lenticular clouds (Altocumulus lenticularis) take shape on the lee side of mountains or elevated terrain as air near the surface is forced upward. However, to get stacked clouds having noticeable layering like these, a strong mountain wave is needed and sufficient moisture must be available at cloud height. Photo taken during the morning of July 30, 2014.

Photo details: Camera Model: NIKON D200; Focal Length: 55mm (35mm equivalent: 82mm); Aperture: f/4.5; Exposure Time: 0.0013 s (1/800); ISO equiv: 100.