On May 20, 2013 an EF5 tornado developed over Moore, Oklahoma. It reached estimated peak winds of 210 mph. This tornado was one of many formed by a large trough. 67 confirmed tornadoes formed from this system. 24 people were killed and the tornado also did $2-3 billion in damage.
-Will Archer
Surface analysis of US at 3pm CST, as the tornado was touching down:
https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=05/20/2013&selmap=2013052021&maptype=namussfc
https://www.weather.gov/images/oun/wxevents/20130520/photos/Tornadoes/Garfield2.JPG
https://www.weather.gov/images/oun/wxevents/20130520/satellite/1350v1_20130521-Moore-GOES.png
NWS Summary of the tornado outbreak
https://www.weather.gov/oun/events-20130520
538 article with some information on history of tornadoes in central OK, especially Moore