Classic "Hook" Echo Over the Flint Hills

Several tornadoes occurred in the Kansas Flint Hills Thursday evening. I was so busy I didn't get the chance to post this at the time. On the left is one of the most classic "hook echoes" (a radar signature of a tornado) you'll ever see. On the right is the Doppler wind data. There is a "couplet" that reveals the concentrated, rotating winds of the tornado (circled).

Both the hook and the tornado it represented came and went quickly.