Today was warm, in the high 70s, with a blue sky, beautiful white clouds, and lots of sunlight. Driving home in the late afternoon, we saw, ahead of us, a rainbow backed by dark clouds. Until that point, I had been happily photographing the generous mixture of stratus and cumulus clouds that were punctured (visually) by contrails. The sun, descending in the West, highlighted the scene. We drove into a misting rain that lasted until we reached home. From the water standing in our yard, it was clear that there had just been a downpour. But the sun was not finished yet and chose our arrival home as the right time to challenge the dissipating rain clouds.