There are so many people around here who live in mobile homes, and without adequate tie downs. It is amazing there aren't more people killed than there are. There are companies that sell below-ground safe rooms; just a steel vault, really, for people to get into during a storm. In some areas, a basement is not feasible due to the high water table.
We have some excellent TV tracking teams that really go above and beyond, in letting us know what's coming. I have a feeling folks who no longer have network TV, just hulu or Netflix, do not get notified when a tornado is coming.
One of the interesting things about this tornado, in Perryville, is that wrecked cars from a junk yard along side the interstate got picked up and slammed into semi trucks driving south on the interstate, knocking them over and off the road.