To the layperson, weather is largely a mysterious force of nature. It is an immutable reality that can, at best, be prepared for. But meteorologists know well that weather is a turbulent combination of many factors, from the energy of the sun falling on the planet to humanity’s chemical output and our constructs of steel, concrete, glass and asphalt. As air heats and cools and gathers moisture at one point and expels it at another, the whole of the world, natural and manmade, comes to bear.