Heh I live in the middle of Tornado Alley... 12 miles North of Tulsa, Oklahoma. I've seen twisters to my left and right within a matter of 2-3 miles of each other. Tornado's are vicious and unpredictable. But when the hail stops and it seems to be calm for a few seconds..here comes that "Train" sound.
I still remember seeing Stroud, OK after an F5 ran it's course from OKC towards Tulsa just a few years ago. Nothing but devastation. Still today most of Stroud has not been rebuilt.
Never look a Tornado in the eye and say "HaaaaaR".