I had just started working on my first cup of coffee this morning when I caught that rainbow out of the corner of my eye. It hadn't been there a few moments before and it was already fading by the time I got outside to get a clearer shot. It was 46°F but there was a very light and fine snow of ice crystals blowing around in the air. I bet that's why it came and went so fast.
Alas, no pot o' gold.