Circumzenithal arc

Today has been lovely, with temperatures around 20°C. At 5.30 this afternoon, with the sun hidden behind the clouds, the sky looked very interesting. I looked around, then directly above my head and noted a small rainbow-like arc. I called John to have a look and managed to get two photos.

It is a circumzenithal arc or “smile in the sky”.

arcMoments later it had disappeared.