Spec out a central hallway closet or bathroom, armed with mattress, water, flashlight, portable radio/batteries. There was a thread on here for folks in earthquake areas that had excellent suggestions, most of which would apply to tornado prone areas. Good luck and God bless you and all in this path. We will pray for no touchdowns, or if there be touchdowns, they come in empty fields.
I remember when the kids were little, like 2 & 5, we were in the closet and turned up tv really loud, cordless phone and shoes. Helpless feeling. Then the power goes out, can’t hear weatherman & warning and cordless phone is worthless. Hopefully now cell phones would work. Still is very scary. Bathrooms make me nervous with all the mirror and laundry room with hot water heater IF one were to hit. So we aim for closet with lots of comforters and lots of pillows.