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Mammatus Clouds


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  • Dani Rohs

    These #mammatusclouds formed on June 26th 2012 above Regina, Canada shortly after a thunderstorm. - So cool.

  • Donna Rhinestone

    Amazing cloud formation in Regina, Canada [612x612] - Imgur

  • Queen B

    These mammatus clouds formed on June 26th 2012 above Regina, Canada shortly after a thunderstorm. Photo courtesy of Preston Smoke/CBC.CA

  • In Vii

    A rare cloud formation - a mammatus; clouds take on a bubble-like shape, appeared in the skies above Regina, Saskatchewan in Canada following a thunderstorm on June 26 [2012 ?], Photo courtesy of Preston Smoke/CBC.CA (Linda).... The sky looked like this after the tornado in Joplin

  • Heather Gilmer

    Slumbercloud Pet Beds are named after these fascinating Altocumulus Clouds, which are usually made of water droplets. www.slumbercloud....

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Imminent Stormageddon, Minnesota, I have seen these kind of clouds in person, awesome!

mammatus clouds, these strange, pouchy formations often occur in association with a thunderstorm

Rest your weary head, child, on the pillows of angels, Nebraska,USA, photo by Brettnickeson.

Mammatus clouds are an intriguing enigma of atmospheric fluid dynamics cloud physics. They’re most commonly observed beneath anvil-shaped thunderclouds. They are formed when ice crystals fall from the cumulonimbus cloud’s anvil. “The ice crystals sublimate, or change from ice to water vapour as they fall, causing the surrounding air to thermodynamically cool. The cooled air becomes negatively buoyant and begins to sink, producing the punched-out look indicative of the mammatus cloud.

~~Silk pouches ~ mammatus cloud display on June 26, 2011, the sky was literally exploding about 15 minutes after sunset, Nebraska by brettnickeson~~

Kumano sea of ​​clouds, Mitsukoshi Pass, Wakayama, Japan

Strange and unusual cloud formations - Mammatus clouds have been seen in many places, especially tornado-prone ones like the Midwestern United States. They are frequently found on the bottom of thunderstorm anvils and indicate large water droplets and heavy rain.

Scary gray cotton balls are filling the sky...