A beautiful illumination of a Cumulonimbus cloud (Thunderhead) over Guilderland, NY
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/52543610@N00">haltschule</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/52543610@N00/225170119/">Sunset Thunderhead</a>