Bright circumzenithal arc

Was picking up my mum from work when some bright sundogs appeared. After the sundogs had faded, cirrus clouds were moving into position over my head & this bright circumzenithal arc appeared. I was amazed by how bright & vivid it was. People walking by were giving me weird looks when I was looking up & taking photos with my cell phone. They were blissfully unaware of what amazing phenomenon was happening above them, which was quite sad to me. I did decide to tell one lady who parked next to me "you should look up. She seemed quite amazed by the arc. I rang an astronomy friend of mine & said you should look up because there’s a bright circumzenithal arc. He told me it was the brightest circumzenithal he has seen in 7 years. It was definitely an amazing spectacle that I will never forget.