[Bluewave]

Not necessarily true. All tornado warnings are intended to get people to shelter. Underground is always best, but not always possible.

[PhiKapMom]

This is only the 2nd time that I have heard them tell people to get underground. Secondary is to get into a room/closet in the center of the house. But an F-5 tornado will flatten a house and in 1999 actually took up foundations in some parts of Moore.