This paper presents future developments of supply chain systems. Trucks were rolling out from Tesco's huge warehouses, in the process of delivering tonnes of foodstuffs to the supermarket chain's 3,000 outlets around the UK, their contents determined by the output of a statistical model that takes into account the local weather, local buying habits, and which day it is. Historic weather data causes change in purchasing behaviour. The core of the system is a regression model built in Mathworks' Matlab of weather and sales to work out what changes make consumers change behaviour.