It’s from an online COPA Safety Seminar. It contains a collection of meteorological terms, what they mean, and how they affect aircraft operations. This was brought forward by Stu Simpson to share with all of you. He thought it’d be handy for all to have access to it to help grow their weather knowledge. Below is a screen-grab of what it looks like. Use this link below to search it, and check it out and see more:

https://avmet.navcanada.ca/en/