HomeTutorial VideosHow To Use The Synoptic Composite How To Use The Synoptic Composite by Jack Sillin/ 10/25/2017/ No Comments/ In this video, forecaster Jack Sillin explains how to use our newly added Synoptic Composite to forecast the behavior of storms. About the author Jack Sillin Jack Sillin is an Atmospheric Science student (Cornell '22) and weather forecaster who regularly writes for weather.us and upportland.com. Follow me on twitter @JackSillin. Related posts Introducing The New Swiss HD Model by Meghan Gulledge/ Lightning Analysis At Weather.us by Jack Sillin/ Weathermodels.com Animator Tutorial by Jack Sillin/ Archived Weather Data At Weather.us by Jack Sillin/ Comment Cancel reply Save my name, email, and website in this browser for the next time I comment. Notice: It seems you have Javascript disabled in your Browser. In order to submit a comment to this post, please write this code along with your comment: f397364cc916fcd385a87fe6cc8f10b1