Altostratus clouds are mid-level, gray or blue-gray clouds that usually cover the whole sky. If you see altostratus clouds, a storm with continuous rain or snow might be on its way. Occasionally, rain falls from an altostratus cloud. If the rain hits the ground, then the cloud has become a nimbostratus.
What is the difference between altostratus and Stratus?
Stratus. Both altostratus clouds and stratus clouds are both layer clouds, so they can certainly look the same. Altostratus clouds are higher in altitude though, which means they won’t touch the ground or mask the tops of tall buildings like a stratus cloud would.
How do you describe altostratus clouds?
Altostratus clouds are “strato” type clouds (see below) that possess a flat and uniform type texture in the mid levels. They frequently indicate the approach of a warm front and may thicken and lower into stratus, then nimbostratus resulting in rain or snow.
How high is the altostratus?
|Variety||Duplicatus Opacus Radiatus Translucidus Undulatus|
|Altitude||2,000–7,000 m (7,000–23,000 ft)|
|Classification||Family B (Medium-level)|
|Appearance||Featureless, gray layer cloud full of vapor; capable of masking the sun|
Are altostratus clouds high or low?
Altostratus are large mid-level sheets of thin cloud. Usually composed of a mixture of water droplets and ice crystals, they are thin enough in parts to allow you to see the Sun weakly through the cloud. They are often spread over a very large area and are typically featureless.
Are stratus clouds fog?
Stratus is used to describe flat, featureless clouds of low altitude, typically less than 300 metres. On the other hand, fog is a stratus cloud in contact with the ground.
What does a stratus cloud look like?
Stratus cloud often look like thin, white sheets covering the whole sky. Since they are so thin, they seldom produce much rain or snow. Sometimes, in the mountains or hills, these clouds appear to be fog. Cumulonimbus clouds grow on hot days when warm, wet air rises very high into the sky.
How high up are cumulus clouds?
|Altitude||200–2,000 m (1,000–7,000 ft)|
|Classification||Family C (Low-level)|
|Appearance||Low-altitude, fluffy heaps of clouds with cotton-like appearance.|
What do altocumulus clouds bring?
Altocumulus 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. Light mist or drizzle sometimes falls out of these clouds.
At what height are altocumulus clouds formed?
between 6,500 and 20,000 feet Altocumulus clouds are composed primarily of water droplets and are located between 6,500 and 20,000 feet (2,000 to 6,000 meters) above the ground. Altocumulus may appear as parallel bands (top photograph) or rounded masses (bottom photograph).
What are low hanging clouds called?
Stratus clouds hang low in the sky as a flat, featureless, uniform layer of grayish cloud.
What are low clouds called?
Five of the 10 types of clouds can be found at low altitudes. The low-altitude clouds are called cumulonimbus, cumulus, stratus, stratocumulus, and nimbostratus. CUMULONIMBUS clouds are piled up high like scoops of dark ice cream. These clouds usually bring rain showers.
What are the 3 types of stratus clouds?
Stratus Cloud Varieties Stratus clouds have three associated cloud varieties: opacus, translucidus, and undulatus.
How high can a stratus cloud be?
|Variety||Opacus Translucidus Undulatus|
|Altitude||0-2,000 m (0-7,000 ft)|
Do stratus clouds produce thunderstorms?
Many different cloud types can be created in this way: altocumulus, altostratus, cirrocumulus, cirrostratus, cirrus, cumulonimbus (and associated mammatus clouds), nimbostratus, stratus, and stratocumulus. They often grow into cumulonimbus clouds, which produce thunderstorms.
Is fog bad for your lungs?
Fog adversely impacts breathing for two reasons. Firstly, breathing in a fog means your delicate lungs are exposed to cold, watery air. This can cause chills, and irritation causing coughs and sniffles. In people with low immunity and vitality levels, it could lead to bronchitis if the coughs are ignored.
Whats the difference between fog and a cloud?
The Short Answer: Clouds and fog both form when water vapor condenses or freezes to form tiny droplets or crystals in the air, but clouds can form at many different altitudes while fog only forms near the ground.
Can we touch clouds?
Well, the simple answer is yes, but we will get into it. Clouds look like they would be fluffy and fun to play in, but they are actually made of trillions “cloud droplets”. Nonetheless, if you were to be able to touch a cloud, it wouldn’t really feel like anything, just a little wet.
Is stratus clouds good or bad?
Stratus clouds are regarded as low-level clouds that have a featureless form. They usually occupy an altitude that spans from 0 to 1200 ft. They come in layered shapes and produce light precipitation in terms of rain or snow.
Why are stratus clouds so low?
Stratus clouds form in calm, stable conditions when gentle breezes raise cool, moist air over colder land or ocean surfaces. These clouds can exist in a variety of thicknesses and are sometimes opaque enough to darken days, allowing for little light to pass through.
What type of cloud is fog?
stratus clouds Fog: Layer of stratus clouds on or near the ground. Different types include radiation fog (forms overnight and burns off in the morning) and advection fog.
What are the 4 main cloud?
The different types of clouds are cumulus, cirrus, stratus and nimbus.
What do stratus clouds bring?
They typically form when warm air is lifted over cold air, which allows the water vapor to condense rather uniformly, transforming the sky into a gray and dreary scene. In fact, stratus clouds can last for days and bring cool temperatures, persistent rain, drizzle, or even snow.
What is the difference between cumulus and stratus clouds?
Two main classifications of clouds are cumulus and stratus. Cumulus clouds result from air rising due to positive buoyancy (i.e. metaphor: bubbles rising in a pot of water). Stratus clouds results from a forced lifting of air (low level convergence, upper level divergence). Stratus on the ground is fog.
What is the rarest cloud?
Kelvin Helmholtz Waves are perhaps the rarest cloud formation of all. Rumored to be the inspiration for Van Gogh’s masterpiece “Starry Night”, they are incredibly distinctive. They are mainly associated with cirrus, altocumulus, and stratus clouds over 5,000m.
How old is the oldest cloud on Earth?
How old is the oldest cloud on Earth? Astronomers have discovered the largest and oldest mass of water ever detected in the universe — a gigantic, 12-billion-year-old cloud harboring 140 trillion times more water than all of Earth’s oceans combined.
What is the tallest thunderstorm ever recorded?
The devastating Plainfield tornado of Aug. 28, 1990, developed from a thunderstorm that towered to 65,000 feet. Earth’s tallest thunderstorms form in the tropics, where tops have been measured to about 75,000 feet — more than 14 miles into the atmosphere.
What do cumulus clouds indicate?
Mostly, cumulus indicates fair weather, often popping up on bright sunny days. Though if conditions allow, cumulus can grow into towering cumulus congestus or cumulonimbus clouds, which can produce showers.
What type of clouds are big and puffy?
Cumulus Clouds When you think of a blue sky dotted with big, puffy, clearly defined clouds, you’re likely picturing fluffy cumulus forms. The name comes from the Latin “cumulo-“, meaning “heap” or “pile.” These clouds develop as dense, individual forms with a pillowy appearance.
Why are cumulus clouds so tall?
How do cumulonimbus clouds form? Cumulonimbus clouds are born through convection, often growing from small cumulus clouds over a hot surface. They get taller and taller until they represent huge powerhouses, storing the same amount of energy as 10 Hiroshima-sized atom bombs.