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Clouds that are dark on the bottom are likely cumulonimbus clouds. That word comes from cumulus and nimbus. Cumulus means light, or fluffy. They're the kind of clouds you look for shapes in. Nimbus means rain. So, fluffy rain clouds is a rough translation. Cumulonimbus clouds bring rain, and possibly a tornado if you live in that area. It might be a heavy rain or a harsh thunderstorm. Just get inside as fast as you can!

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Is cumulus short for cumulonimbus?

No. Cumulus clouds are the fairly small, puffy white clouds that usually come with nice weather. Cumulonimbus clouds are enormous towering clouds often called thunderheads as it is these clouds that become thunderstorms.


What is a Large fluffy clouds that are low in the sky?

Large, fluffy clouds that are low in the sky are typically known as cumulus clouds. These clouds are characterized by their white, puffy appearance and often indicate fair weather. When they grow taller and darker, they may develop into cumulonimbus clouds, which can produce thunderstorms. Cumulus clouds are commonly seen on sunny days and are a sign of rising warm air.


What type of clouds get larger and darker?

Cumulonimbus clouds


What is clouds that look like lumps of cotton in the sky indicate?

Clouds that resemble lumps of cotton in the sky are often cumulus clouds. These fluffy, white clouds typically indicate fair weather, as they form in stable atmospheric conditions. However, if they grow larger and darker, they can develop into cumulonimbus clouds, which may signal thunderstorms or severe weather. Overall, their appearance generally suggests a pleasant day ahead.


Why some cloud are darker than other?

Because they are thicker making it hard for light to travel through


Why are thunder clouds gray?

Thunder clouds are grey because they are denser and heavier than other clouds. Clouds are just clumps of moisture beads that form in the atmosphere. Clouds that cause thunderstorms tend to contain much more moisture than other clouds - they are thicker and heavier, and thus they appear darker because light cannot get through them.


Why some clouds darker than others?

Some clouds are darker because of the lack of sunlight. Some clouds are blocking the other clouds and it forms a shadow and that the cloud won't get sunlight. Also that if the cloud is darker, because it is pollution. Pollution is like an evil dye that no one likes because it also has a lot of chemicals in it. That is why NEVER DRINK RAIN WATER! The darker clouds have water (rain) in them, where as the white ones are just empty.


What rain clouds look like?

grey darker and lower


Do black clouds produce rain?

Yes, some rain clouds are dark grey or black, due to the fact that these clouds are very dense and big, also containing lots of water vapor. The density of the cloud and all the water vapor doesn't allow as much light through as a normal cloud does, giving it a darker appearance.


Why do clouds tern black?

All clouds are white, meaning the water droplets that make up a cloud scatter light in all wavelengths so they combine to produce white light. Clouds appear dark if they are in the shadow of other clouds or, sometimes, if the top of the same cloud produces a shadow on itself. There is also a darker look to some clouds if the background color is bright sunlight, making a great contrast.


Why do clouds get darker?

Clouds appear darker when they are thick and dense, as they contain more water droplets or ice crystals that scatter and absorb light. When sunlight passes through these clouds, less light reaches the surface, making the clouds appear gray or dark. Additionally, the presence of moisture and larger droplets can enhance this effect, especially during precipitation. As the cloud's density increases, the amount of light that escapes decreases, resulting in a darker appearance.


Why is it most likely to rain when clouds are grey?

The darker the cloud... the more moisture it contains.