I chased the white rainbow! 

This morning, there was a heavy fog along the Salinas River, which parallels Hwy 101. As I drove northwest, the rising sun behind me was at such an angle that it made a prism through the vapor.  Instead of the expected colored rainbow, there was a special effect, as if I were driving into an receding grey cup with an iridescent and vibrating white rim.

It was eerie, extraordinary and mystical.