Asperitas


For the first time in over 50 years, skies are officially cloudier. This year maestros of meteorologic whimsy, conduits of foreboding trepidation and petticoats of nature’s fancy were asked to make room for Asperitas at the head table. Gavin Pretor-Pinney, founder of the Cloud Appreciation Society inducted Asperitas into the International Cloud Atlas hall of fame. A monumental achievement in science clouded by genre, subsection, supplementary features and special circumstance.

https://cloudatlas.wmo.int/clouds-supplementary-features-asperitas.html

Gavin Pretor-Pinney defined Asperitas as –

… localized waves in the cloud base, either smooth or dappled with smaller features, sometimes descending into sharp points, as if viewing a roughened sea surface from below. Varying levels of illumination and thickness of cloud can lead to dramatic visual effects.

An asperitas formation over Ballstad, Vestvagoy, Lofoten islands, north of Norway.

If by chance you happen upon undulating clouds that resemble rough seas if viewed from below – shout a hearty welcome to Asperitas, the first cloud formation recognized in half a century.

Cloud Appreciation Society


In 2004 Gavin Pretor-Pinney of the United Kingdom formed CAS, the Cloud Appreciation Society. The following year Yahoo declared their website “the most weird and wonderful find on the internet for 2005”. As of May 2016, the society claims over 40,000 members representing 165 countries.

“We believe that clouds are for dreamers and their contemplation benefits the soul. Indeed, all who consider the shapes they see in them will save money on psychoanalysis bills.” – from the CAS Manifesto, full document at – https://cloudappreciationsociety.org/manifesto/

Membership will set you back around $50 (annual membership plus a one time “sign-up fee”)  Sign-up fee covers postage of the CAS member package – a shiny enameled lapel pin, official certificate stating member will “henceforth seek to persuade all who’ll listen of the wonder and beauty of clouds”, and a handy pocket cloud selector. Members submit cloud wonders via the CAS app. Every morning a “cloud of the day” image is sent to member mailboxes. Member info at – https://cloudappreciationsociety.org/cas-membership-intro/

Below – November “Cloud Of The Month” photographed by James Tromans over Warwickshire, England.

Cloud of the Month - November 2016

Four images above – a selection of daily clouds.