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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

Saturday 23rd November 2024

Quiara Alegría Hudes (Member 49,909) saw ‘a circular rainbow in the sky’ over New York City, US. In fact, this is a 22-degree halo, an optical phenomenon caused by the refraction of sunlight through the ice crystals in thin cloud like the …

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Cloud of the Month

November 2024

Want to learn how to read clouds to forecast the weather? Look for the comma-shaped formations known as Cirrus uncinus that feature as Cloud of the Month for November...
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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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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 →

Recent Clouds Spotted

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New from our Members

Cloud Music
Dan Barstow, Member 41,557 introduced us to the ...
Cloud Art
Natalie Christensen is an award winning photographer whose ...
Cloud Videos
Massimiliano Squadroni, continues his project "The Sunrise from ...
Aladdin's lamp spotted over Bhutan, south Asia.
Cloud Poetry
Minnie Biggs, Member 4,330, recently sent her poem ...

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, […]