a shoal of cloud fish
drift lazily down sky,
dissolve into blue
Another sunny day. As the sun warms the ground in the early morning, invisible columns of air rise up into the azure sky, forming cumulus clouds with flat bases and fluffy tops. No chance of rain, though, as these are fair-weather clouds. Today's pristine white clouds are cumulus humilis, longer than they are wide.
They look like a shoal of fish drifting on unseen currents in a blue lake, separate yet together, all heading south. Or maybe it's a herd of centaurs with long white beards, or a bevy of mermaids, or a swarm of bumblebees. By the time I identify a shape, it begins to dissolve. These clouds are also cumulus fractus, with ragged edges that rather quickly dissipate.
By late afternoon the clouds have nearly vanished. Only a few slender minnows are floating near the horizon. As the air cools and the warm thermals sink to the ground, they soon dissolve into the blue.