Thanks for the reply @marekd. I completely understand your priorities (what developer really wants to write documentation ;) ) and I am slowly slugging through things and figuring things out.
I am pretty sure some solid docs would end up with more people using and building on Windy.com and that can only be a good thing for you guys. I am happy to help if you want...
Has someone been able to answer this question?
I am interested in pulling all the weather data from a specific point where the picker was placed, without much success as described by Gary.
Windy API is just another layer for leaflet. If you are familiar with leaflet, you can do anything you want. But you have to handle it on your own: create new layer, create visualizations, animations, ... There is no support for adding your own data to the existing map.