Phoning in New Clouds: Part 3 – Meet the Newest Clouds

Doomsday Cloud

The Doomsday cloud, Undulatus Asperatus.

NASA/Witta Priester

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As I’ve mentioned before, twelve new cloud types were announced this past year. Some of the most interesting are what we call the “special” and accessory clouds …

(The photo above shows the “Doomsday” cloud, Undulatus Asperatus, which I shared in my last post on new cloud discoveries.)

What’s an accessory cloud? This is a cloud that accompanies another. Believe me, you would rather see the picture than have one coming at you.

The new accessory cloud is called a “flumen” and is a low cloud associated with severe supercell storms. They move towards but are not attached to thunderstorm clouds, (cumulonimbus), carrying warm wet air. They feed the storm, sometimes supplying enough moisture and energy for tornado development. 

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Feeding the storm: : A Flumen cloud Source: WMO, International Cloud Atlas

Five other new clouds are “special” clouds which are weirdly-created Frankenstein clouds that are unusually made. Instead of forming due to the humidity and temperature variations in the upper atmosphere, these clouds are created by conditions on the Earth’s surface or conditions created by living organisms. Their Latin names are truly intimidating mouthfuls. Two are:

  • Cataractogenous, describing clouds that develop from the spray of large waterfalls, and
  • Flammagenitus, describing clouds formed by wildfires.

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Water and fire clouds: Cataractogenous and Flammagenitus clouds are created by surface conditions. Source: Wikipedia

Living things can create clouds as well. One, newly recognized, is Silvagenitus, clouds formed under the influence of moisture from respiring trees. The woodlands carry moisture from their roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere. You can see it rising like steam and forming clouds.

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Silvagenitus, the forest clouds Source: WMO, International Cloud Atlas

Two types of special clouds are made by man:

  • homogenitus, describing clouds formed by human activities, such as airplane contrails and power plant steam, and
  • homomutatus, describing clouds originally made by humans that gradually transform into more natural-looking forms, like a contrail that eventually spreads in the wind.

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The clouds we make: Homogenitus (Source: Wikipedia) and Homomutatus (Source: WMO, International Cloud Atlas)

Those are all for now. Keep your cell phones out. The next new clouds could be discovered by you!

 

About This Blog

Evelyn Browning Garriss doesn't just blog about the weather forecast; she provides insight on WHY extreme weather is happening--and a heads up on weather to watch out for. A historical climatologist, Evelyn blogs about weather history, interesting facts about the weather, and upcoming climate events that affect your life--from farming to your grocery bill. Every week, we look forward to another great weather column from Evelyn. We encourage our weather watchers to post their comments and questions--and tell us what they think!

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The photo in the article is not a contrail.

Contrails disappear quite rapidly. Geoengineering spreads across the sky. It is a chemical cloud not jet fuel condensation. Don't believe me? Anyone over 50 knows the sky never looked like this growing up even living in a high air traffic area. Any old Farmer can tell you the same thing. Geoengineering's patent is online for you to research. It exists. New clouds? A result of Geoengineering. Don't refute it before you research it.

Climate engineering

Thank you for posting about geoengineering. I wish they would tell the truth.

You are right. Thanks for

You are right. Thanks for educating people.

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