Let it snow, let it snow, let it snow. Christmas carrolls are full of wishes for snow – alas, anyone living in the UK now doesn’t think of a white Christmas. (Nor did anyone in China a year ago.) Why is it that snow comes such a surprise that all(!) transportation modes come to a halt? It’s the same thing at Milan airport, the first snowfall of the year leads to a complete shutdown, and to infinite disruptions in any supply chain that involves companies from Milan. Hope it doesn’t affect fashion week 
What I do not understand is the “surprise” effect of snow; it snows there every year at least once! Or have we got used too much to the effects of global warming that we have forgotten about snow?
What is more, what ever happened to dynamic vehicle routing models that could be used to avoid such disruptions? Or maybe we should ask Emmett Lodree for advice how to incorporate weather forecasts in supply chain modelling? (see his latest article in Computers and Operations Research)
Well, I certainly hope that the supply chains of “snow chains” don’t suffer from snow!
Gyöngyi
BTW, according to IBM, “SNOW” will make your supply chain greener 
