1965 <a href="https://en.wikipedia.org/wiki/Elkhart,_Indiana" class="extiw" title="w:Elkhart, Indiana">Elkhart, Indiana</a> double tornado on <a href="https://en.wikipedia.org/wiki/Palm_Sunday" class="extiw" title="w:Palm Sunday">Palm Sunday</a>
NOAA
<a rel="nofollow" class="external text" href="http://www.noaanews.noaa.gov/stories2005/images/tornado-palmsunday04-11-1965b.jpg">NOAA photo</a> and <a rel="nofollow" class="external text" href="http://www.noaanews.noaa.gov/stories2005/s2418.htm">Full Story</a>