What floor can a hurricane or tornado hit even a wildfire what floor is the safest to be at?

little shelters/dips in the ground for the tornado and hurricane and on a inflammable floor like concrete or tarmac for the wild fire

Explanation:

im not 100 percent Shure if this is correct since the question wording is funny but if you go in a ditch the wind will more or less blow over you and the fire one tarmac and cement won't catch fire you just have to be on the center of it because it can blow onto it sometimes