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Questions tagged [clouds]

In meteorology, a cloud refers to a visible group of liquid droplets and/or frozen crystals made of water or various chemicals, suspended in the atmosphere.

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Why aren't lenticular clouds moved by the wind?

My book tells me that altocumulus lenticularis are not moved by wind but rather the air just flows through them without effect on their position. How come they are the only cloud type that is stationary?
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What cloud formation is this?

I thought it may be mammatus, but the absence of the hanging down "udders" made me doubt.
John Codling
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Clouds moving in opposite directions

Today driving to work I saw a small, isolated horse's mane cloud at about 2000 feet. Directly above it was a small strato-cumulous cloud at 4000 feet and and they were moving in opposite directions. The horse's mane was moving north and the…
Tyler Durden
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Where can we see the noctilucent clouds?

I saw many pictures of noctilucent clouds in the UK. Is it a phenomenon only visible in the UK or we can see it somewhere else?
Archa
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Estimate cloudbase height

I am trying to estimate cloudbase height using calculations from my weather station temperature/humidity, by calculating those two variables I can get estimated cloudbase height but what puzzles me now is inversion layers and temperature at…
Tomislav Medić
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Cloud in a bottle experiment. Why does the "cloud" get thicker with repeated squeezing?

I have done the cloud in a bottle experiment (Youtube video) with a thermometer probe in the bottle to show the temperature increase and decrease. I am interested in the nature of the changes as the cloud nuclei get covered with water and then as…
Brian White
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How to estimate size of cloud formation

Looking up at say a cumulus cloud at a height of 2km which covers say 10 degrees of the visible sky, what is the easiest way to estimate its rough size at its base? Simply put, how large is the arc of visible sky viewed from the surface?
Peter Brand
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Do clouds always move?

Can a cloud ever be stationary with respect to the ground surface? For some reason (experience, logic?) it seems to me such case is not possible. I read that stationary fronts are defined as two air masses such that neither air mass is strong…
luchonacho
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What causes this cloud formation?

This was taken about November 18 in southern Arizona, USA. I’ve never seen any clouds like this before. Is it natural or caused by some airplane?
Thom Blair III
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What is this ring of cloud?

We were in Legoland in Windsor (SE England) recently, and towards the end of the day, we noticed what looked like a ring of cloud in the sky. It was quite large (hard to say as being up in the sky we didn't have a reference point to measure it by).…
Avrohom Yisroel
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What could the ball of cloud I saw be?

I wish I had a picture of this thing I saw, and I did try to video it, but then they hurtled very quickly out of sight. Anyway, I will try to explain. . . You know when you're up in a plane in the sky, you can see clouds in 'individual' balls?…
user8517
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Does the Nasa video show proof of the biotic pump theory?

(Edited). Biotic pump theory (2006): Forests cause enhanced transpiration and precipitation and create areas of low pressure that suck in more moisture in a positive feedback loop. A few years ago an international team found the mechanism for…
Brian White
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In which state of matter exactly are the clouds?

The state of the clouds and it can only be one of the three states, solid, liquid, or gas. Which one are clouds?
paula Dawid
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From where we get the observed cloud liquid water content data

I want to study the clouds and its profile which requires some basic observed variables, does anyone knows how and from where we can get the observed liquid water content data.
Deva
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Is there a real time tool to monitor electric flow in the clouds?

I was wondering if there is a tool that shows electric charge in the clouds. Something like this, but more detailed.
tec
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