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The society for people who love the sky

Welcome, artists, scientists, cloudspotters and dreamers. You've come to the right place!

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Today's Cloud-a-Day

Sunday 15th September 2024

Lindsay Gray (Member 3,707) headed east from New York City on a cruise. After two days at sea, she saw a species of the high ice-crystal cloud Cirrus drifting over the Atlantic. This form of Cirrus is known as floccus, a name which means ‘…

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Cloud of the Month

Rainbow spotted by Kerry White from Glastonbury Tor

September 2024

For many cultures, rainbows are symbols of hope. Why is that? We think it comes down to the way a rainbow forms, as we explain in Cloud of the Month for September...
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See past Clouds of the Month

Our Memory Cloud Atlas

On Cloud Appreciation Day, Friday September 13th, 2024, friends and members of the Cloud Appreciation Society contributed photographs of their skies to our Memory Cloud Atlas. The Atlas was open for contributions on this day only. It stands as a snapshot of a world looking up and appreciating the sky on one particular day.

Find out more about our Memory Cloud Atlas →

Get our new book: Cloudspotting for Beginners

A collaboration with award-winning illustrator William Grill, Cloudspotting for Beginners is a stunning introduction to clouds and the sky. We are very proud of this beautiful hardback book. Charming, uplifting, and easy to understand for all ages, Cloudspotting for Beginners will inspire anyone curious about clouds to look up at the sky with a new understanding and appreciation.

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Recent Clouds Spotted

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New from our Members

Lake Erie Clouds
Cloud Art
Joan Pogalies, Member 62,612 from Ohio USA, created ...
Cloud Music
"From Above the Clouds" is an excerpt from ...
Cloud Art
Resa Blatman, Member 57,717, is an artist from ...
Fibratus over Yarra Glen, Australia
Cloud Poetry
Leah is a cloud enthusiast who regularly watches ...

Cloud Appreciation Pack for schools

A Survival Kit for the Imagination

Our downloadable lesson plans and resources for schools and homeschools teaching about the sky.

News

Lacunosus over Beaconsfield, United States
September 9, 2024

Why You Should Be Looking Up

Cloud Appreciation Society founder, Gavin Pretor-Pinney, Member 001, was recently invited to join Amanda Yorwerth on the podcast, Environment Matters. They discussed all things cloudlike along with Cloud Appreciation Day which is coming up this Friday, 13th September.You can listen to the Environment Matters Podcast hereImage credit: Lacunosus over Beaconsfield, United States by Cheryl Lappin
August 29, 2024

Earth’s Jet Stream: Creating the Seeds that Generate Clouds

Clouds form when water vapour condenses or freezes around tiny particles, called cloud condensation nuclei, that are suspended in the atmosphere. These particles are hygroscopic, meaning they attract water. Examples of cloud condensation nuclei, also called cloud seeds, include dust, ocean salt, and sulfuric acid particles. Often, entirely new particles are formed in the atmosphere […]
June 30, 2024

EarthCARE: A New Satellite Getting to the Heart of Clouds

On May 28, 2024, the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) teamed up to launch a 3-year mission called EarthCARE in order to profile Earth’s clouds to see what effect they are having on climate change. Different cloud formations interact with sunlight in different ways. For example, the low, thick, […]