May 16, 2004. My very first chase. We left Lincoln in the late morning and set up in Kearney to watch data. As storms started firing to the NW, we moved north and saw two brief tornadoes near Rockville. Unfortunately they were very short lived so no photos.
To add to the insanity of my first day chasing, The DOW and TIV were there as well.
Edit: OK, my first EXPERIENCE with a tornado was May 4, 1977. I was 5 years old and can still remember seeing the small tree outside the basement window being bent over the top bar of the chain link fence. All of the windows in our house were blown out, and several homes on all sides of ours in our neighborhood were destroyed. I don't really remember the emotions of it, but I do remember the intensity of the experience and how my family reacted to tornadoes for years after that.