Which are the types of clouds?
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There are three main cloud types.\n\nCumulus clouds are the puffy clouds that look like puffs of cotton. Cumulus clouds that do not get very tall are indicators of fair weather. If they do grow tall, they can turn into thunderstorms. The bottom of cumulus clouds are fairly close to the ground.\n\nStratus clouds look like flat sheets of clouds. These clouds can mean an overcast day or steady rain. They may stay in one place for several days.\n\nCirrus clouds are high feathery clouds. They are up so high they are actually made up of ice particles. They are indicators of fair weather when they are scattered in a clear blue sky.\n\nNimbus is another word associated with clouds. Adding "nimbus" means precipitation is falling from the cloud.\n\nCumulonimbus clouds are the "thunderheads" that can be seen on a warm summer day and can bring strong winds, hail, and rain.\n\nNimbostratus clouds will bring a long steady rain.
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Water vapour is a colourless, transparent gas - so clouds are quite clearly not made of it.\n\nClouds are indeed made of small drops of water. They stay up becaus of convection. Clouds can only be stable where there is an updraft to counter the slow drift down of the water droplets under gravity. \n\nThere are two basic types - stratiform which are stable and supported by a constant updraft and convective in which you can actually see the churning effect of convection if you look.
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Cumulus: White fluffy one that look like floating sheep- warm air rises fast and is cooled fast.\n\nCirrus: Light wispy clouds that look like feathers or curls of hair- Formed really high in the sky and where it is cold. They contain only ice crystals.\n\nNimbostratus: Dark clouds that hang low. They are true rain and snow clouds.\n\nCumulonimbus: White fluffy clouds with dark bottoms. Winds often flatten out their tops. These are storm clouds that give us thunder, lightning and tornadoes.\n\nStratus: Thick clouds which are layered.  They hang low and often dull grey in color.
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It depends on the temperatures of the clouds.\n\nClouds that are below freezing: you would want ONE of these ice-forming agents:\n    1) silver iodide (most common)\n    2) dry ice\n    3) compressed liquid propane\n    4) carbon dioxide\n\nClouds that are warm: you would want ONE  of these droplet-forming agents:\n    1) salt (most common)\n    2) urea\n    3) ammonium nitrate
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I would say winter, you said summer might be, but those clouds usually are from thunderstoms, which die out rather quickly, but winter makes snow storms that can last for days, so, if I was to give an answer, I would say winter. Also, I live in Arizona, so you don't have to trust me on this one :>)
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Pictures of a cloud? Try this link:\nhttp://images.google.com/images?svnum=10&hl=en&lr=&q=clouds\n\nIf you need pics in the future, both Google Image Search and Yahoo Image Search will give you whatever pics you need.\n\nHave a nice day,\nTerras
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Clouds are made up of water vapour which rise into the air by the heat of the sun. They stay at a height where the sun has just enough effect to keep them up.
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Well you see, not all clouds are the same: Here are some different types of clouds, that don't rain at all.\n\nCirrus Clouds\nCirrus clouds are the most common of the high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from which direction weather is approaching. When you see cirrus clouds, it usually indicates that a change in the weather will occur within 24 hours.\n\n\nCirrostratus clouds are thin, sheetlike high clouds that often cover the entire sky. They are so thin that the sun and moon can be seen through them. Cirrostratus clouds usually come 12-24 hours before a rain or snow storm.\n\n\nCirrocumulus clouds appear as small, rounded white puffs that appear in long rows. The small ripples in the cirrocumulus clouds sometime resemble the scales of a fish. Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. In tropical regions, they may indicate an approaching hurricane.\n\n\n"Alto" Clouds\nAltostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets. The clouds usually cover the entire sky. In the thinner areas of the clouds, the sun may be dimly visible as a round disk. Altostratus clouds often form ahead of storms with continuous rain or snow.\n \n\nAltocumulus clouds are mid level clouds that are made of water droplets and appear as gray puffy masses. They usually form in groups. If you see altocumulus clouds on a warm, sticky morning, be prepared to see thunderstorms late in the afternoon.\n\n\nStratus Clouds\nStratus clouds are uniform grayish clouds that often cover the entire sky. They resemble fog that doesn't reach the ground. Light mist or drizzle sometimes falls out of these clouds.\n \n\nStratocumulus clouds are low, puffy and gray. Most form in rows with blue sky visible in between them. Rain rarely occurs with stratocumulus clouds, however, they can turn into nimbostratus clouds.\n\n\nNimbostratus clouds form a dark gray, wet looking cloudy layer associated with continuously falling rain or snow. They often produce precipitation that is usually light to moderate.\n\n\nCumulus Clouds\nCumulus clouds are white, puffy clouds that look like pieces of floating cotton. Cumulus clouds are often called "fair-weather clouds". The base of each cloud it flat and the top of each cloud has rounded towers. When the top of the cumulus clouds resemble the head of a cauliflower, it is called cumulus congestus or towering cumulus. These clouds grow upward and they can develop into giant cumulonimbus clouds, which are thunderstorm clouds.\n\n\nCumulonimbus clouds are thunderstorm clouds. High winds can flatten the top of the cloud into an anvil-like shape. Cumulonimbus clouds are associated with heavy rain, snow, hail, lightning and even tornadoes. The anvil usually points in the direction the storm is moving.\n \n\nSpecial Clouds\nMammatus clouds are low hanging bulges that droop from cumulonimbus clouds. Mammatus clouds are usually associated with severe weather.\n\n\nLenticular clouds are caused by a wave wind pattern created by the mountains. They look like discs or flying saucers that form near mountains.\n\n\nFog is a cloud on the ground. It is composed of billions of tiny water droplets floating in the air. Fog exists if the atmospheric visibility near the Earth's surface is reduced to 1 kilometer or less.\n\nContrails are condensation trails left behind jet aircrafts. Contrails form when hot humid air from jet exhaust mixes with environmental air of low vapor pressure and low temperature. The mixing is a result of turbulence generated by the engine exhaust.\n\nhope this helps :-).
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The mechanism of Cloud formation is still not understood. Researchers are now applying Chaos Theory in the study and modelling of cloud behavior.\n\nWe "see" clouds only when the high moisture regions are sufficiently close to refract and reflect light. Actually they are highly dynamic systems.
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Clouds move at the wind speed at their particular elevation. Typically what this means high clouds (typically cirrus) move faster than lower clouds (e.g. cumulus), and effect you can see occassional on partially cloudy days, however, in hurricanes and other localized weather events, low clouds can move extremely fast also.
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a lot!\nwater is really dense, and clouds are composed of water vapor-imagine a steam room, with about 1.5 times more water per unit of volume, then imagine al the water in there times, 10000(at least the size of a big cloud), even if the air weighed 1/100th of a pound, that could would with 10 lbs
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did you mean how do clouds form?\n\nIf so, they form from water evaporating on the surface of the earth. As the vapour rises, it reaches cooler, higher areas of the atmosphere and the vapour begins to condense, around microscopic particles in the air. Once this process has started, other molecules will start to join in, until the vapour condenses and clumps together. When enough forms, it is no longer lighter than air, and rain will occur.
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Clouds are made up of tiny water droplets or ice crystals, usually a mixture of both. The water and ice scatter all light, making clouds appear white. If the clouds get thick enough or high enough all the light above does not make it through, hence the gray or dark look. Also, if there are lots of other clouds around, their shadow can add to the gray or multicolored gray appearance.
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Cloud is in as usual way
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A cumulonimbus cloud forms in rising air (updraft).  The air cools as it rises, and at a certain point the water vapor in the air condenses into water droplets, forming a cloud.  Around a large Cb there is often downdraft - the air gets warmer as it subsides, and any water droplets (=clouds) will evaporate.
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cirrus, stratus, and cumulus. however, those are just the three most basic forms of clouds. you have cumulonimbus, for example, which are thunderstorm clouds that form from cumulus clouds. does that help or did i confuse you more????????
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All types of clouds can be found throught the year in St. Paul, Minnesota. I can't name them all, but go to the weather channel. They have all kinds of information.