Congratulations and the virtual Midmarsh Gold Star to TexWisGirl, Wilma, Ragged Robin and Adrian for identifying last week's cloud formation. Acutally called mammatus or mammatocumulus. They can occur when the rising moisture and ice crystals in the cloud become too heavy and start to descend making large bumps below the main cloud. These can be a mile across. It is usually associated with thunder / storm clouds.
The formation can be very short lived so I was really pleased I popped outside at just the right moment to be able to record the phenomenon.
Back to a closer view of something for this week's mystery photo.
Please leave any guesses in the comments.
They will be revealed, along with the answer, next Monday.
No prizes, just for fun and maybe a virtual Midmarsh Gold or Silver Star.