Here is a basic tutorial with pictures (not video) of how to do so:
http://www.instructables.com/id/Predicting-Weather-with-Clouds/
I have a weather book that goes in more detail, but this is a good primer.
http://www.instructables.com/id/Predicting-Weather-with-Clouds/
I have a weather book that goes in more detail, but this is a good primer.