Another in the series of quadtyches on clouds. "Sunrise" is the next entry.

This quadtych (a four-paneled art work), "Just Another Day", denotes the passage of time. It's either in one day or a series of days. You could see different clouds in both instances.

The concept of this quadtych (a four-paneled piece of art) is that the top left panel is the very beginnings of a nice day interrupted by a heavy thunderstorm (the upper right & lower left panels). The lower right is the aftermath of the storm.

This quadtych, "Thunder Hole" is completely imaginative. I have never seen a thunder head like this.

Here's another window quadtych (art work that has four panels). This phenomenon is typical for this part of the world – New England. A poet once described the creeping arrival of fog as coming in "on little cat's feet".

Afternoon Turmoil (Quadtych) 24” x 17.75” (61 cm x 45 cm) 2003
A Quadtych is a four-paneled art work.
I came across this one and others
in the storage unit where I’m stashing older & old watercolor works.