My, My, My!!! I was treated to one of the most spectacular displays of Cirrus clouds in my life. Let me correct that. The first display of this kind that I noticed.
I’ve been observing and photographing clouds over the past few years, especially the last two. Today was amazing!
I’m not an expert on clouds, except to say that Cirrus clouds occur at 20,000 plus feet.
This article is an excellent in-depth educational read.
and this article for photos with subclassifications.