The Weather Guy, Michael Baldwin is an Associate professor in the Department of Earth, Atmospheric, and Planetary Sciences at Purdue University. In this episode we discuss the first rule of forecasting, what weather models are, and how meteorologists use them to predict the weather. How the Earth is a system that includes many things such as sea ice, and sea surface temperature. Dr. Baldwin explains the normal ENSO water temperature patterns and the differences in El Nino and La Nina patterns.