These clouds were my view the other day out of my "office" window.
I use the term office quite loosely since I'm enclosed in a former cloak closet in our 98 year old school. It's actually a pretty cool room (I'll post photos later) complete with original coat hooks and solid wooden door with pane glass window.
The window at the back of the closet may or may not have been there almost 100 years ago, but it's big enough that it kinda freaked me out when I saw these puppies forming. I was looking for the nearest desk under which to hide.