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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As her aircraft descended into Portland, Oregon, US, Kristen Erekson (Member 56,298) spotted a cap cloud perched on Mount Hood. Cap clouds form when steady winds of moist air flow up and over mountains. When the temperature and humidity of…
Cloud of the Month
Get our Cloud-a-Day App
Our free Cloud-a-Day app is the perfect way to start your journey to becoming an expert cloudspotter. It has a library of descriptions and reference images for 58 different clouds and optical effects and it uses the power of AI to help you identify the clouds you spot. Members can also view the Cloud-a-Day in the app that they get as part of their subscription.
New from our Members
Get the Book
A Cloud A Day is our beautifully illustrated book containing 365 skies selected by the Cloud Appreciation Society. It includes photographs by our members from around the world of stunning and fascinating formations, as well as examples of clouds depicted by great artists and even formations in Space, such as interstellar clouds and those on other planets. This is the ultimate dip-in-and-out book for sky lovers. Each image is accompanied by an enlightening explanation, a revealing snippet of cloud science, a surprising story or an uplifting quotation. Each entry will teach you about the sky in a fun and uplifting way.