Double arches of rainbows are so wonderful!! We have them a lot here in the Pacific Northwest too. I was driving along yesterday, and we keep having areas of rain in the distance, and sun in others, and suddenly half a rainbow showed up right across the hiway, and then the other half!! So there was a huge huge total rainbow. It made me feel like finding a way to climb into those colours!! So awesome.I really love seeing a reflection of this rainbow of yours. I don't think I've EVER seen that before. It's absolutely magnificent!! Bravo on being there at the right moment. Verena