Best place to go during a tornado?

eastern south carolina has a 70% chance of seeing tornados today, i have never seen a tornado so i have no idea what its like. my living room, my bedrooms, my patio and my bathroom have windows and the 2 closets have shelves so there is no room to fit in them. where would be the best place to go? my house is cinder block. the window in the bathroom is not like the windows in the rest of the house, i dont know what its called but it lets light in but you cant see in or out of it.