Last evening, the sky in Tucson was an unbelievable pink.  There was a rainbow that I tried to capture, but the depth of the pink did not allow it to show through on the picture. 

This picture was taken from my backyard. The colors changed so quickly, I couldn't get two anywhere near alike.

This was taken from the front of my house looking west.

 I had driven through the rain and hail on my way home, but when I got home, it hadn't started raining in our part of town.  These were all taken before the rain got to our area of town.  As the rain approached, the clouds became darker and darker. 

Another taken from the front, looking west.  As the sun set, the colors became more distinct.