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Author Topic: Why are clouds "bumpy"?  (Read 4488 times)

Offline Geezer

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Why are clouds "bumpy"?
« on: 04/05/2011 05:50:18 »
Why does an aeromobile get kicked around as soon as it enters a nice puffy white cloud?


 

Offline Airthumbs

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Why are clouds "bumpy"?
« Reply #1 on: 04/05/2011 15:52:55 »
This is an educated guess Geezer so don't quote me on this......  The Sun is heating up the top of the cloud and the temperature difference causes convection and movement of air within and around the cloud.

I know of a Hang glider pilot who was unfortunate enough to take off in not the best weather conditions.  Due to the updraft underneath a large cloud he was sucked into the cloud.  After a few minutes ice had formed all over the aircraft and he became unconscious due to Hyperthermia.  Fortunately the glider was able to land itself eventually and he survived, although somewhat battered and bruised! I understand that in some larger clouds wind speeds can reach upto 400mph.

Also you may notice on a clear sunny day with white puffy clouds in the sky that occasionally there is a gust of wind, this is caused by the clouds drawing air into them as they pass over and is something that Hang glider pilots are very aware of. Of course there are other reasons for this gust such as thermals and changing weather patterns but clouds cause it too.
 

Offline Marinthe

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Why are clouds "bumpy"?
« Reply #2 on: 05/05/2011 10:24:42 »
It just their normal shape.... It happens during the natural process...

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« Last Edit: 05/05/2011 10:39:03 by imatfaal »
 

Offline Geezer

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Why are clouds "bumpy"?
« Reply #3 on: 05/05/2011 19:25:24 »
Yes,yes! Thanks Airtumbs. That could be it. Mind you, I've noticed it even seems to happen when the Sun is very low on the horizon, so maybe something else is going on too.
 

Offline RD

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Why are clouds "bumpy"?
« Reply #4 on: 05/05/2011 22:45:38 »
« Last Edit: 05/05/2011 22:48:11 by RD »
 

Offline Geezer

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Why are clouds "bumpy"?
« Reply #5 on: 06/05/2011 00:59:57 »
Yes, yes! Thanks RD. It could be turbulence, but when it happened the other day, I noticed that the clouds didn't seem to be turbulating or anything. Everything was perfectly smooth until we actually flew into the clouds.

I should add that we were on a final approach at the time and I'd estimate we were at around 8,000 feet. It was around 8 pm and there were scattered showers in the area.
 

Offline Geezer

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Why are clouds "bumpy"?
« Reply #6 on: 08/05/2011 17:47:31 »
I agree with Marinthe. I also think that it's just a natural process..

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The Naked Scientists Forum

Why are clouds "bumpy"?
« Reply #6 on: 08/05/2011 17:47:31 »

 

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