Undulatus Asperatus Clouds Observed Over Corfu Island, Greece

July 18, 2013

Undulatus Asperatus Clouds Observed Over Corfu Island

Photographer: Bill Metallinos; Bill's Web site
Summary Authors: Bill Metallinos; Jim Foster

The photo above showing eerie-looking undulatus asperatus clouds was taken from Corfu Island, Greece. It almost appears as though the sky turned into the sea. These mid-level wave clouds were recognized as a new cloud type and given a special name in 2009. It's been observed that undulatus asperatus have a predilection to form before midday, over areas with little vertical relief, after convective storms have moved through. Photo taken on April 2, 2013.

Photo details: Canon EOS 40D camera; EF 100-100; 100 mm; f/4.5; ISO 800.