I have both of those books by Warren Faidley. I don't know if he ever was active on here, but he does still post on Stormtrack from time to time. One of the few old-school chasers who still does, actually.
I also recognize that video from a mid-'90s Weather Channel documentary called Target: Tornado. They didn't use that video itself but another one of the same tornado that was taken from the front-lit side, so the tornado appeared white and I didn't recognize it as the same one on the cover of Storm Chaser until now. Although I've long since lost my VHS tape of that show, I remember the tornado starting as a perfect little cone funnel that gradually stretched down to meet a dust swirl on the ground, then became a tilted elephant's truck partially shrouded in dust (that phase reminiscent of the famous Cordell, OK tornado from May 1981, and also of pictures I've seen of Tuesday's Gilmore City, IA tornado which I was once again frustratingly close to seeing, but didn't).