The night before last, the humidity of the past week finally blew away. The air is clear and light again and, when the clouds part, we can see lovely, deep blue sky in place of a hazy mess. This morning that deep blue sky played host to a nice display of whispy cirrus clouds. Taking an opportunity to pull into a park on during my commute, I spent a few minutes enjoying and photographing the sky with cirrus for decoration.
Addendum: An interesting photo was posted to the Palomar Skies blog… yes, the historic and world-famous Palomar Observatory! See: Palomar Flies its Colors! It turns out the technical name for this phenomenon is "circumhorizon arc." More on this may be found at: Atmospheric Optics.