Why Do Some Clouds Not Produce Rain?

Who invented cloud seeding?

Vincent J.

SchaeferVincent J.

Schaefer, a self-taught chemist who invented cloud “seeding” and created the first artificially induced snow and rainfall, died on Sunday at a hospital in Schenectady, N.Y.

He was 87 and lived in Rotterdam, N.Y..

Can rain be created artificially?

Rainmaking, also known as artificial precipitation, artificial rainfall and pluviculture, is the act of attempting to artificially induce or increase precipitation, usually to stave off drought or the wider global warming.

Do altocumulus clouds produce precipitation?

Mostly found in settled weather, altocumulus clouds are usually composed of droplets, but may also contain ice crystals. Precipitation from these clouds is rare, but even if rain does fall it doesn’t reach the ground.

Why do clouds turn gray before it rains?

When clouds are thin, they let a large portion of the light through and appear white. But like any objects that transmit light, the thicker they are, the less light makes it through. As their thickness increases, the bottoms of clouds look darker but still scatter all colors. We perceive this as gray.

Why do clouds turn pink?

Red, orange and pink clouds occur almost entirely at sunrise and sunset and are the result of the scattering of sunlight by the atmosphere. … Clouds look darker in the near-infrared because water absorbs solar radiation at those wavelengths.

Why do clouds turn green?

But light under a 12-mile high thundercloud is primarily blue, due to scattering by water droplets within the cloud. When blue objects are illuminated with red light, Bachmeier says, they appear green.

Why do clouds float?

Clouds form when warm wet air rises and condenses in cold air. … Water droplets in air behave the same way as dust6. The second reason that clouds can float in the air is that there is a constant flow of warm air rising to meet the cloud: the warm air pushes up on the cloud and keeps it afloat.

What are the dangers of cloud seeding?

Silver iodide, the material used in cloud seeding, is toxic to aquatic life. So precipitation from seeded clouds can harm the environment. In response to these concerns, scientists have tested nontoxic replacements for silver iodide. They have found calcium chloride to be effective.

What substance turns clouds into rain?

The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide). Liquid propane, which expands into a gas, has also been used. This can produce ice crystals at higher temperatures than silver iodide.

Is fog a cloud?

Fog forms only at low altitudes. Clouds can form at many different altitudes. They can be as high as 12 miles above sea level or as low as the ground. Fog is a kind of cloud that touches the ground. Fog forms when the air near the ground cools enough to turn its water vapor into liquid water or ice.

Are stratus clouds high or low?

Stratus cloudAltitude0-2,000 m (0-7,000 ft)ClassificationFamily C (Low-level)Appearancehorizontal layersPrecipitation cloud?Uncommon Drizzle, freezing drizzle or snow grains6 more rows

What gives clouds their color?

The Color of Clouds. The color of a cloud depends primarily upon the color of the light it receives. The Earth’s natural source of light is the sun which provides ‘white’ light. White light combines all of the colors in the ‘visible spectrum’, which is the range of colors we can see.

Why do some clouds produce rain?

Within a cloud, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to Earth as rain. … Water vapor turns into clouds when it cools and condenses—that is, turns back into liquid water or ice.

Do GREY clouds means rain?

It’s pretty well-known that most clouds are white, while rain clouds are usually a darker shade of gray. … That is, a cloud gets thicker and denser as it gathers more water droplets and ice crystals — the thicker it gets, the more light it scatters, resulting in less light penetrating all the way through it.

Do stratus clouds bring rain?

Stratus clouds are uniform and flat, producing a gray layer of cloud cover which may be precipitation-free or may cause periods of light precipitation or drizzle. … Thick, dense stratus or stratocumulus clouds producing steady rain or snow often are referred to as nimbostratus clouds.

How can you make it rain?

How to (Try to) Make It RainSeeding the Sky. The most widely used weather-modification technique is probably cloud seeding, which involves priming clouds with particles of silver iodide. … Rain Rockets. Airplanes aren’t the only way to seed clouds. … The Atmosphere Zapper. … Ice-Breaking Booms. … Riding the Lightning.

Are clouds wet?

The Short Answer: Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air. You hang up a wet towel and, when you come back, it’s dry.

What clouds do not produce rain?

Because they form in conditions unfavorable to vertical development, nimbostratus clouds never produce heavy rains or thunderstorms. Nimbostratus clouds are associated with warm fronts, where warm, moist air gradually overrides colder air at the surface. Visibility is very low beneath nimbostratus clouds.

Does rain only come from clouds?

As the water vapor rises up in the air, it condenses, or starts to cool down and turns back into a liquid. Then, droplets of water start to stick together as clouds. … When water drops fall from clouds, it is called rain. Sometimes the droplets freeze before they get to the ground and become hail, sleet, or snow!

How do clouds move?

Clouds move because the wind is carrying the parcel of cloudy air along. Wind occurs at all levels of the atmosphere from the ground up to higher than a jumbo jet can fly. Sometimes there can be no wind on the ground, but cirrus clouds very high up can be seen moving because of the wind where they are.

What is the highest type of cloud?

Cirrus clouds are the highest of all clouds and are composed entirely of ice crystals. Cirrus clouds are precipitating clouds, although the ice crystals evaporate high above the earth’s surface.