If you are looking for more information about topics in weather and climate or if you just want to learn something new, you might want to check out a couple of sites that contain a lot of useful modules which explain various aspects of weather and climate at no cost, although for MetEd you will need to sign up for an account.
A good basic site for getting introductory information is the National Weather Service’s Jet Stream (https://www.weather.gov/jetstream/). They provide a comprehensive list of topics in meteorology that would be a good source of quick explanations for phenomena like derechos, for example. Here is a link that brings you to the matrix of all the topics they cover: https://www.weather.gov/jetstream/matrix.
If you want something at a little higher level, then MedEd (https://www.meted.ucar.edu/index.php) is a good place to look. This site from UCAR provides hundreds of lessons, from simple training videos, to lessons designed to hone the skills of experienced forecasters. The main page provides an introductory video and a search function that can help you find a module that works for you.
There are a few resources on severe weather at EDEN, the Extension Disaster Education Network (https://extensiondisaster.net/) but they are pretty sparse.
If you know of other sources of training that you think would be useful, please email them to me and I will add them to the list.