In 2004, Walmart began using predictive technology, and looked at sales data from recent hurricanes, to determine what customers want to purchase most leading up to a storm.
What they found out was not at all what you might expect. You might think that the number one items people would pick-up first would be, bread or water. What people are actually getting is beer and Strawberry Pop-Tarts, according to the research Walmart had done.
Walmart reported that, sales of Pop-Tarts increased seven times their normal sales rate, ahead of Hurricane Harvey. They also reported that beer was their top-selling item before the hurricane.