Surprising images captured on my iPhone

These photos were taken on December 3, 2021 when Peter, my husband, and I were at the Texas A&M School of Dentistry building in downtown Dallas.

I was in the waiting room on the 8^th floor when I looked out the window and noticed a vertical rainbow that seemed to be going straight up into the sky.  It was unusual because it did not rain on that day and the sky was clear blue.  I went close to the large window and took some photos of the rainbow with my phone.

Outside was darkening fast as though it was about to rain at any moment.  And the rainbow was turning more vivid against the darkening backdrop. So, I took a few more shots.  However, it never rained on that day.