A <a href="https://en.wikipedia.org/wiki/pileus_(meteorology)" class="extiw" title="en:pileus (meteorology)">pileus cloud</a> atop a <a href="https://en.wikipedia.org/wiki/cumulonimbus_cloud" class="extiw" title="en:cumulonimbus cloud">cumulonimbus</a> over the <a href="https://en.wikipedia.org/wiki/Lake_of_Constance" class="extiw" title="en:Lake of Constance">Lake of Constance</a>.
<a href="//commons.wikimedia.org/w/index.php?title=User:Michael81&amp;action=edit&amp;redlink=1" class="new" title="User:Michael81 (page does not exist)">Michael81</a>
8 July 2004, 16:09:34 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
<span class="int-own-work" lang="en">Own work</span>