To a large extent, the study of weather, better known as meteorology, is rooted in a few fundamental properties. It is these properties that are the key to unlocking all that the Skew-T log (p) diagram has to offer. Even though some of the concepts and dialogue presented in this primer are quite challenging even for the most seasoned pilot, they are born out of these fundamental properties of air.

A thermodynamic chart such as the Skew-T log (p) diagram is the best kept secret in aviation. This primer is the most comprehensive resource available for general aviation pilots who want to leverage its use as supplemental weather guidance for preflight route planning. Specifically, the Skew-T log (p) diagram allows you to “drill down” over a particular location to identify or describe adverse weather better in time and space than any other single chart or diagram. Are you ready to unlock its plentiful secrets?