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Latest Cumulonimbus cloud Stories

Pollution Causes Thunderstorms To Leave Lingering Clouds
2013-11-26 15:18:22

Pacific Northwest National Laboratory Study shows why pollution results in larger, deeper and longer lasting storm clouds, leading to colder days and warmer nights A new study reveals how pollution causes thunderstorms to leave behind larger, deeper, longer lasting clouds. Appearing in the Proceedings of the National Academy of Sciences November 26, the results solve a long-standing debate and reveal how pollution plays into climate warming. The work can also provide a gauge for the...

Weather Education Header
2012-04-23 03:00:24

Red Orbit Meteorologist Joshua Kelly In this lesson we will look at different components of a thunderstorm. The first is the thunder which is the audio shockwave that is released just after a flash of lightning occurs. There is a rule of thumb that if you count the seconds after a flash of lightning to the sound of thunder you can determine how far away the thunderstorm is. For example if you count 5 seconds after a flash of lighting to the sound of thunder this would tell you the...

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2011-04-27 13:42:29

Lori Keesey, NASA Scientists from NASA and other organizations are on a mission to unlock the mysteries of why certain clouds produce copious amounts of rain. In a field mission that is now under way, aircraft are carrying instruments above and into rain clouds. Meanwhile scientists are also getting rainfall measurements on the ground. This field campaign provides the most comprehensive observations of rainfall in the U.S. through the use of aircraft, spacecraft, remote sensing and ground...

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2010-08-12 08:24:42

Researchers demonstrate how honeycomb clouds exhibit self-organization Like shifting sand dunes, some clouds disappear in one place and reappear in another. New work this week in Nature  shows why: Rain causes air to move vertically, which breaks down and builds up cloud walls. The air movement forms patterns in low clouds that remain cohesive structures even while appearing to shift about the sky, due to a principle called self-organization. These clouds, called open-cell clouds that...


Latest Cumulonimbus cloud Reference Libraries

Weather Education - Super-cell Thunderstorms
2013-01-13 09:51:18

In this lesson we are going to take a look at super-cell thunderstorms and what they mean and how they impact our daily lives. First, a super-cell thunderstorm is formed from a cumulus-nimbus cloud.  Super-cell thunderstorms are the most advanced form of thunderstorms known on earth. This is because these types of thunderstorms need so many things to come together in the atmosphere at the same time. The first thing they need is the warm moist air at or near the surface. Secondly, is...

Cumulus-nimbus Clouds
2014-01-11 00:00:00

The image above shows a Cumulus-nimbus cloud that has an anvil top to it. The reason that can be identified is that the cirrus is in place above the center of the storm. The image below does not have an anvil top yet. The anvil top forms on CB clouds after they reach the height in the atmosphere where they begin to feel the upper level winds becoming too strong for them to continue development vertically. The storm on the right has not felt the upper level winds yet, that is why it lacks the...

Cumulus Clouds (Low Cloud)
2014-01-11 00:00:00

If you look in the photo above you can see the line of Cumulus clouds that appear in the background. These clouds were created by daytime heating and also an unstable atmosphere. The moisture for these clouds was rising from the Pacific Ocean. The darker cloud is the stronger of the cumulus clouds meaning that the majority of the moisture is being absorbed by that cloud. The clouds around this one are also starting to get more moisture from the ocean to build. Above the cumulus clouds you...

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2009-07-04 15:37:27

Nimbostratus clouds are distinguished by a formless cloud layer that is predominantly dark gray in color. "Nimbo" comes from the Latin word "nimbus", meaning rain. It is a cloud that produces rain, and develops a cloud base between the surface and 10,000 feet. These clouds normally have a thickness of 6,500 to 10,000 feet, but can range from 3,500 to 15,000 feet. In rare cases, nimbostratus can be very thin and be accompanied by a separate layer of altostratus divided by a cloudless layer....

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Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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