A Circumhorizontal Arc, as photographed by Marilyn Green.

We had some beautiful clouds last week. They must have been cirrus or cirrostratus clouds as those are the types of clouds a Circumhorizontal Arc might appear. Marilyn Green photographed this rather rare phenomenon.

 

They are formed by the refraction of the sun in ice crystals suspended in the clouds, a beautiful sight, indeed.

Thanks to Marilyn for allowing me to share her photo with you here.

Another HOT day on the Mendonoma coast! Beach weather, for sure.