CloudSat's first image, of a warm front storm over the Norwegian Sea, was obtained on May 20, 2006. Top image shows the area covered. Bottom image is a horizontal cross-section of clouds, warm air seen rising over colder air. Red = rain or ice crystals; blue = thinner clouds (such as cirrus); green = horizon. Shows the atmosphere to 19 altitude. Image credit: NASA/JPL/The Cooperative Institute for Research in the Atmosphere (CIRA), Colorado State University