...snip... Maybe not even all the way underground and it could store preparedness equipment/goods as well.
Now that I think of it, NY does not seem a likely tornado area, so perhaps an in ground shelter is overkill b
There averages 1-2 tornados/year on Long Island - I was in an F0 in 1969 not far from where the storm was last night (it went just south of me BTW)
The problem with Underground where Jessup lives is the same problem with underground in New Orleans - H2O - He lives on the south shore - and I believe on one of the barrier islands to Long Island - dig, and you have water