We had a bad snow storm a few years ago with power out for 7 days. No problem for us - even had an old neighbor gal stay with us. Of course once the kids saw me crank up the wood stove (which we never use) then they wanted s’mores. Cross-country skied to the store, and they DID have marshmallows! (I had the chocolate and graham crackers).
Not much else was on the shelves, and the checkout lady looked at me funny when all I bought was a couple bags of marshmallows!
With the “just in time” shipping combined with bad roads, it doesn’t take long for the stores to run out.
JIT AKA OSWO