It turns out the diversity of clouds I wrote about last week wasn't a fluke. Springtim clouds really do seem to be the most diverse. Here's another example. These images were taken just a few hours apart. Early in the morning, just a few small cumulus clouds dotted the lower atmosphere. But by late morning, the lower atmosphere featured larger cumulus. And the one in the middle looked like it might be developing into an anvil-shaped thunderstorm cloud (but it didn't.)
Higher up, a variety of cloud types seemed to compete for space in the sky. What a lovely show.