Why Do People Buy Bread and Milk Before a Major Winter Storm?

A common phenomenon before a major winter storm is a rush on bread and milk at the local grocery store, but why does this happen? Apparently, this unique shopping dates back to the Great Blizzard of 1978 that hit New England and left people trapped in their homes for days without staple groceries. Instead of perishable items like milk and bread, it’s advised to actually stock up on self-stable goods before a major storm. Have you ever racked up a huge grocery bill before a storm? How much do you remember spending?