For those of you who would consider an interior closet a place to shelter, if the ceiling is vaulted, and the roof gets blown off, the ceiling will go along with it.

That would be best if there is no alternative.

I am linking you here to an article on tornado safety from NOAA's website. (National Oceanic and Atmospheric Administration) These are basic guidelines.

Tornado Safety (Online Tornado FAQ)

This morning, we learned that a tornado claimed the life of two people in the Sarasota area, who were in a manufactured home/RV. We need to pay attention to TV, radio and cell phone weather alerts as tornadoes come fast and with little warning!