Kansas twisters, May 2016 Multiple, large, violent tornadoes moved through southwest Kansas. This was a rope tornado, from the same parent supercell that later produced some of the large tornadoes. Pic from Alex Hutchins.
We were astonished at the variation in the look of tornadoes south of Matheson, Colorado. The rapidity of change, including strengthening and weakening. This tornado is a spectacular example of a rapidly strengthening anticyclonic circulation.