Strange clouds over Crofty
It was taken over Crofty on Gower. I think the hole is in Altocumulus clouds looking up towards Cirrus clouds above.
![cloud_crofty.jpg](/staticarchive/213653221a6443243deb6eaca63a83fade7f1a5b.jpg)
After a little help from colleagues at the Met Office, we concluded that the hole in the Altocumulus clouds could either be caused by the distrail from a circling aircraft, or descent in mountain waves.
If you take an usual photograph of a cloud, please send it in and you never know - I might be able to show it on the telly!
Derek
Â鶹¹ÙÍøÊ×Ò³Èë¿Ú - Types of clouds
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