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43 Photos Of Bad-Ass Cloud Formations

Clouds, how do they work?

submitted by: fancylad
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43 Photos Of Bad-Ass Cloud Formations. Clouds, how do they work?
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Hits: 6254 | Favorites: 3 | Emailed: 2 | Rating: 2.0 | Category: Science | Date: 07/28/2012
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Female, 50-59, Canada
 6406 Posts
Saturday, July 28, 2012 6:53:20 PM
Uh, the last one is the wingtip vortex off the crop duster, and not a cloud.
Also mammatus clouds = titty clouds. (-D

Male, 30-39, Europe
 1754 Posts
Saturday, July 28, 2012 6:22:41 PM
Mammatus clouds are NOT something you wanna have hanging over you; they're the precursor to violent thunderstorms (by violent I mean USA level violent) - Asian level applies in many things, but the USA tops the bill in the thunderstorm stakes. Best case is a medium level thunderstorm. Worstcase is a supercell with multiple tornadoes. It`s one of those "I hope it goes some place else" things.

The good news is that it`s exceptionally rare for Europe (where I live) to get such clouds.

That said, Cumulonimbus cloud is also not great if it`s heading for you, it too can generate severe weather, i.e. violent thunderstorms, potentially. That said, given a choice, I`d take cumuloniumbus every single time. There`s less of a severity factor. We get them regularly in the summer in Europe; I saw several today in fact. One of them decided to rain on me even. I was not impressed. I got soaked. Bastard cloud.

The rest of them are harmless, albeit pretty.

Male, 30-39, Europe
 108 Posts
Saturday, July 28, 2012 12:57:54 PM
Not clouds... Always, and I mean ALWAYS, UFO's or God. Nature could never, and I mean NEVER, create such a beautiful thing. Right..? RIGHT!?!?!?!?!

Male, 18-29, Canada
 2496 Posts
Saturday, July 28, 2012 11:11:54 AM
If you're truly curious, look up Kelvin-Helmholtz instability, Plateau-Rayleigh instability, Rayleigh-Taylor instability, von Karman streets, and Taylor-Couette flow.

Those pretty much explain most of them, most are instabilities in an otherwise sheet-like flow due to a number of factors, most important of which is the difference in speed of two non-miscible fluids (it also explains how sea waves are made from the difference in speed from water and air).

You can see my experiments here along with some other cool fluid stuff.

That`s how they work. WHY they happen after/during/before some specific natural phenomenae... I don`t know.

Male, 30-39, Western US
 4381 Posts
Saturday, July 28, 2012 10:42:32 AM
Pac N.W. well represented. One thing we have here...is clouds. Also, Chive sux. Too much lag.

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