Today, Danville residents got a chance to see a very unusual cloud formation and I was lucky to be in the right spot to get a photo.
Mammatus clouds are relatively rare but occasionally occur in this area for short periods of time. Sometimes you’re in the right place at the right time with your camera.
Enjoy. 
Thanks for the wonderful picture and the education. Somehow I had missed mammatus clouds! And I call myself an amateur weatherphile!