I was recently reading an article on photographing clouds as backdrops for compositing. I do not do composites from different times and places so I only half paid it any attention.
For me if I am going to photograph clouds it is because I see something extraordinary. Fortunately, and with the recent weather we have been having, this happens regularly.
Photo: Robert Rath, ‘Day 661, Cloud Soaring’, 1/500s f/10 ISO320 75mm