… is my new favorite tumblr!
Video: Cloud streets ::: Pink Tentacle
Morning Glory Cloud.
The Morning Glory cloud is a rare meteorological phenomenon observed in Northern Australia’s Gulf of Carpentaria. A Morning Glory cloud is a roll cloud that can be up to 1000 kilometers long, 1 to 2 kilometers high, and can move at speeds up to 60 kilometers per hour
(via Wikipedia)
How come I never knew about this until now???
Weather Geeks Champion New Armageddon-Worthy Cloud
In hill country from Iowa to the Scottish Highlands, sky-gazers have reported some strange, ominous-looking clouds of late. Dubbed undulatus asperatus (turbulent undulation), the atmospheric anomaly could be headed where only 80-odd clouds have gone before: into the International Cloud Atlas. If it makes the cut, asperatus will be the first new addition in more than 50 years.
Woah.
Single-cell Cumulonimbus incus - Mykonos / Greece, June 2009
A cumulonimbus incus (Latin incus, “anvil”) is a cumulonimbus cloud which has reached the level of stratospheric stability and has formed the characteristic flat, anvil-top shape. It can cause a supercell and then a tornado.
“What kind of cloud is this? A roll cloud. These rare long clouds may form near advancing cold fronts. In particular, a downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. When this happens uniformly along an extended front, a roll cloud may form. Roll clouds may actually have air circulating along the long horizontal axis of the cloud. A roll cloud is not thought to be able to morph into a tornado. Unlike a similar shelf cloud, a roll cloud is completely detached from their parent cumulonimbus cloud. Pictured above, a roll cloud extends far into the distance in the summer of 2005 above Albany, Missouri, USA.”
(via APOD: 2006 January 17 - A Roll Cloud Over Missouri)
Wikipedia:
Kelvin Helmholtz instability clouds in San Francisco.These clouds, sometimes called “billow clouds,” are produced by instability, when horizontal layers of air brush by one another at different velocities. A better name might be van Gogh clouds: It is widely believed that these waves in the sky inspired the swirls in van Gogh’s masterpiece Starry Night
(via jheath)
(via jheath:somethingintellectual)











