On Saturday morning after the Thanksgiving rainstorm, the sun and the fog held a contest for dominance, and at one point they produced a faint, foggy, almost colorless rainbow. It seemed at first like an accidental cloud formation, but the very regular shape and the hints of prismatic tints on the lower ends of the arc gave it away. Can we call it a fogbow? The spectral figure lasted only a few minutes and never did develop into a frank rainbow of the familiar kind, such as we have seen over the park before. Despite its low winter angle, the sun won the battle for the sky, and by late morning all that was left of the early shroud drifted off eastward into the hills.