I know what you're thinking, why would someone living in Juneau take pictures of clouds! We don't get these types of clouds very often and I didn't realize until I saw them on this last trip to Fairbanks, that I missed them.
I was walking at Creamer's Field after a very warm day and watched the big thunder clouds start to roll in. They gather together to form larger masses, rolling and churning until they get darker. On this occasion, thunder never developed and I didn't get rained on as I walked through the fields.