one of the better ideas i've seen.i have a couple old hard hats,the ones with the brim,stuck away someplace.i'll dig them out and hang them on the inside of the somewhat reinforced storage space under the basement steps.
last summer a rare twister went thru North Minneapolis so here in the South end of the city i guess we could take a hit.
the plan is to pull the trash cans of dog food out of this tiny room and pull the sleeping bags,i have many in stuff sacks,around us and hang on.
basements seem sort of "iffy" to me,gas and water pipes and a lot overhead to fall in but that the best i can think of for shelter.
by the way i was so "what could happen" when the sirens sounded for that storm i stood in the back yard taking videos of the nasty looking sky------