National Weather Center at the University of Oklahoma
Tyler Arbogast (<a href="//commons.wikimedia.org/w/index.php?title=User:Webmaestro&amp;action=edit&amp;redlink=1" class="new" title="User:Webmaestro (page does not exist)">Webmaestro</a>)
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>