I couldn't get enough of these clouds that appeared after a rainstorm we had last week. My mother taught me the names of clouds as a child, traveling across the desert from California to Utah, in the sweltering summer heat. Cumulus, the cumulus family, nimbus, stratus, cirrus (to this day, cumulus clouds remind me of this song...) These particular clouds are called mammatus, although my boyfriend, not my mother, taught me this (he knows his clouds). As in mammary glands. Usually appearing after, but sometimes before, a storm. I thought they looked like balls of cotton, and I floated with them until they disappeared into the night sky.