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    sonicbomb.com :: View topic - Giant Mushroom Cloud over Beijing

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    Canopus
    King (500 kt)


    Joined: Jun 26, 2007
    Posts: 78

    PostPosted: Mon Jun 18, 2012 10:36 pm Reply with quote

    Easily 100MT-equivalent... Smile

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    Graviton
    Yankee (13.5 mt)


    Joined: Sep 03, 2006
    Posts: 1588
    Location: USA

    PostPosted: Wed Jun 20, 2012 4:23 pm Reply with quote

    Why would someone call that a mushroom cloud?

    That's just a big dry line storm cell, with early evening solar illumination, and flanking clouds in the lower picture. They also have well understood cloud structure, that makes them different from mushroom clouds.

    It obviously has a powerful updraft, seeing the beveling of the anvil at the edges.
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    Canopus
    King (500 kt)


    Joined: Jun 26, 2007
    Posts: 78

    PostPosted: Wed Jun 20, 2012 6:57 pm Reply with quote

    Well of course this is intended as a joke and it is not strictly a mushroom cloud as we define it, but the shape is reminiscent of it, not really at the beginning of the explosion sequence but more like after a few minutes, for a really big bomb... Here are a few pictures from other angles and at different times:







    Doesn't that plane remind you of the "vultures" that took samples of clouds during the tests? Smile

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    bueschu
    Cherokee (3.8 mt)


    Joined: Mar 17, 2008
    Posts: 424

    PostPosted: Thu Jun 21, 2012 1:26 pm Reply with quote

    Absolutely awsome pics, dude! Very Happy
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    Graviton
    Yankee (13.5 mt)


    Joined: Sep 03, 2006
    Posts: 1588
    Location: USA

    PostPosted: Thu Jun 21, 2012 8:23 pm Reply with quote

    Quote:
    Doesn't that plane remind you of the "vultures" that took samples of clouds during the tests? Smile




    This is a beautiful shot, yet alarming at the same time. Chances are that is a supercell. Smart and informed pilots with common sense stay clear of them, because they can easily overwhelm and even bring down an aircraft.

    Among the worst deceptions of a supercell is the vault, a visually clear area down-shear zone, next to the updraft column. These zones, especially to the E/NE of the core (in the northern hemisphere), can produce gigantic hail in what appear as relatively rain-free, clear sky:

    http://www.youtube.com/watch?v=SMnEgOdjgaw

    http://www.stormeffects.com/images/52302%20PampaBstNite1.jpg

    The good thing about low precipitation supercells is that they tend to die away quickly, unlike their high precipitation variants. High precipitation pulls down a strong windshear, creating better equilibrium with the storm engine's powerful updraft.

    A big, long-lasting, supercell system is more energetic (over time) than even the biggest nuclear detonations, since a nuclear detonation is essentially the effects produced by the decay of a catastrophic, instantaneous release of energy. This is not like a continual supercell feed of unstable air over a massive area, that can exceed 4000 Joules/kg of work-production air over a sustained span of time.

    http://flighttraining.aopa.org/magazine/2000/June/200006_Flying_Safe_The_Weather_Never_Sleeps.html

    A must-see site:

    http://www.wx-pilot.com/2012/06/accuweather-coms-article-on-wx-pilot-coms-aerial-storm-chasing-event/#.T-N1e6auV8F
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