The warning system is not designed to help people in tornadoes as strong as we witnessed today. The advice is go to the basement (we don't have basements in the southeast b/c of the water table) or go to an interior room on the lowest floor.
That's great advice for most situations.
It's terrible advice for a long-track EF-4 or EF-5. The vast majority of the people took the "standard advice" and those in the path died. People are not standing outside and ignoring these things. Almost everyone I know pays close attention.
The old advice..."get in your car and get the heck outta the way"....it contradicts the new advice that has been well engrained. Go back and look at some of the footage today. Today, the best advice was the old advice. Get in the car and take your chances. It's easy in the Midwest...I've lived there. Everyone has basements and storm cellars.
What sort of irks me a little bit is that we have so, so many people who trust the authorities and follow the standard advice against their own gut feeling and that standard advice is just horrible if you're in the path of a storm that will clean the foundation of the home.
Someone said it earlier...the modern warning system saves many lives in the smaller tornadoes but it is costing lives in these big ones. People think they'll be OK in their bathtub on the first floor of their home when they're in the path of an EF-5. Personally, I think you should run like hell if you don't have an underground shelter. Run and don't look back. There's nowhere you can reasonably be safe in "riding out" tornadoes like this.
If you look at most of the damage photos, you're going to see that the places where most people were killed were places that have no business being used as shelter from a powerful, long-track wedge tornado. The conventional wisdom is usually right but it is occasionally horribly, horribly wrong. It bothers me to see educated mets go on TV and repeat the mantra to stay in an interior room of their wood-frame home while looking at something that powerful. It's time to panic. It's time to run like hell.
People did what they were told and huddled in their homes and died when they could've literally run to relative safety. They had time, but doing what they were told cost them their lives.