Joining the CAS Community

To view the CAS Community pages, you will need to confirm you accept our Terms and Conditions. If you do not accept them please click Back in your browser.

To participate in Cloudspotter Groups and to view other Cloud Appreciation Society members, you will need to complete your own Community Profile by uploading profile and header images and confirming details about yourself.

Filter Photos:

You have selected:

Main Cloud Types

Other Clouds

Optical Effects


Munch inspired by ‘screaming clouds’

A collection of nacreous formations over Edinburgh, Scotland. © Colin Fraser

Munch inspired by ‘screaming clouds’

Matthew MacKenzie, member 42913, spotted this article on the BBC News website.

In 1892 Edvard Munch painted The Scream and in the background the sky in full of colourful wavy lines. Scientists from Norway have theorised that these are probably Mother of Pearl or Nacreous clouds. These clouds are usually spotted two hours after sunset or just before sunrise and are extremely bright with vivid, shifting iridescent colours.

Click here to read the full article.

No Comments

Post a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.