Bruce - many thanks for posting all this footage. Like Jeff, I recall seeing some of the footage back in my late teens/early 20s, in my case on the Tornado Video Classics series (these were my 'fix' of storm footage back then, here in the UK). The turning around part, and also the concrete being scoured stand out as very clear memories from these videos! Back then I was dreaming of visiting the Plains - I made that dream a reality in 1998, and in most subsequent years! Back when I first saw the footage, the Plains were a far-off, somewhat abstract (to me) concept and location - now, with many thousands of miles under my belt out there, I recognise some of the locations very easily!
As a side-note: much of the footage I saw in my formative years was rather like this - taken in a calm and collected manner, with no whoopin' and a hollerin' - perhaps that's why I also don't shriek and shout on my footage!