They are generally known as thunderstorm clouds. A cumulonimbus cloud can grow up to 10km high. At this height, high winds will flatten the top of the cloud out into an anvil-like shape. Cumulonimbus clouds are associated with heavy rain, snow, hail, lightning, and tornadoes.
Likewise, what weather does the cirrus cloud bring?
Cirrus 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.
What is the definition of a cirrus cloud?
Cirrus (cloud classification symbol: Ci) is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.
What does cirrus clouds look like?
The most common form of high-level clouds are thin and often wispy cirrus clouds. Typically found at heights greater than 20,000 feet (6,000 meters), cirrus clouds are composed of ice crystals that originate from the freezing of supercooled water droplets.
What is the color of a cumulonimbus cloud?
Stratocumulus clouds generally appear as a low, lumpy layer of clouds that that is often the spreading remains of much larger cumulonimbus clouds. They range in color from dark gray to light gray and can appear in rows, patches, or as rounded masses with breaks of clear sky in between.
Which clouds are best associated with a thunderstorm?
Typically, cumulus clouds are associated with pleasant weather where you can lie back on the grass and admire the sky.
Above: Fair weather cumulus clouds over a field (Courtesy Wikipedia)
Above: Textbook example of a towering cumulonimbus cloud (Courtesy Wikipedia)
Above: Layer of stratus clouds (Courtesy Wikipedia)
What are the 10 different types of clouds?
The foundation consists of 10 major cloud types. In addition to cirrus, stratus, cumulus, and nimbus clouds, there are cirrostratus, cirrocumulus, altostratus, altocumulus, stratocumulus, nimbostratus, and cumulonimbus clouds. The following table places these cloud types into the four major cloud groups.
What does an anvil cloud mean?
A cumulonimbus incus (Latin incus, “anvil”) also known as an anvil cloud is a cumulonimbus cloud which has reached the level of stratospheric stability and has formed the characteristic flat, anvil-top shape.
What are dark storm clouds called?
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 characteristics of cumulus clouds?
Cumulus humilis clouds usually indicate fair weather. Cumulus mediocris clouds are similar, except that they have some vertical development, which implies that they can grow into cumulus congestus or even cumulonimbus clouds, which can produce heavy rain, lightning, severe winds, hail, and even tornadoes.
Do cumulonimbus clouds bring rain?
(“Nimbus” comes from the Latin word for “rain.”) Two examples are the nimbostratus or cumulonimbus clouds. Nimbostratus clouds bring continuous precipitation that can last for many hours. Thunderheads produce rain, thunder, and lightning.
What weather does a cumulonimbus cloud bring?
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.
What is the main cause of precipitation?
Precipitation forms when cloud droplets or ice particles in cloudsgrow and combine to become so large that the updrafts in the clouds can no longer support them, and they fall to the ground.
How high are cirrus clouds?
Cirrus Clouds: thin and wispy. The most common form of high-level clouds are thin and often wispy cirrus clouds. Typically found at heights greater than 20,000 feet (6,000 meters), cirrus clouds are composed of ice crystals that originate from the freezing of supercooled water droplets.
How does a storm form?
The air cools as it rises. Water vapor condenses and forms cumulus clouds. When condensation occurs, heat (latent heat/energy ) is released and helps the thunderstorm grow. At some point, condensation high in the cloud (now in the form of water droplets and ice) falls to the ground as rain.
What does a cumulonimbus cloud do?
Cumulonimbus, from the Latin cumulus (“heaped”) and nimbus (“rainstorm”), is a dense, towering vertical cloud, forming from water vapor carried by powerful upward air currents. Cumulonimbus can form alone, in clusters, or along cold front squall lines.
Why do cumulonimbus clouds form?
This is caused by ionized droplets in the clouds rubbing against each other. The static charge built up create lightning. Cumulonimbus clouds need warm and humid conditions to form. This gives them the moist warm updrafts needed to produce them.
How long do cumulonimbus clouds last?
If a cumulonimbus cloud develops into a supercell, it can last several hours or longer. This type of storm often results in lightning, hail, strong and damaging wind, and tornadoes. Often the rain produced by a cumulonimbus cloud only lasts for 20 minutes or less, but the rainfall itself is often very heavy.
How lightning is produced?
Heavier, negatively charged particles sink to the bottom of the cloud. When the positive and negative charges grow large enough, a giant spark – lightning – occurs between the two charges within the cloud. Most lightning happens inside a cloud, but sometimes it happens between the cloud and the ground.
What is the Stratus cloud made up of?
Description. Stratus clouds look like featureless gray to white sheets of cloud. They can be composed of water droplets, supercooled water droplets, or ice crystals depending upon the ambient temperature.
What does altocumulus do?
Altocumulus (From Latin Altus, “high”, cumulus, “heaped”) is a middle-altitude cloud genus that belongs mainly to the stratocumuliform physical category characterized by globular masses or rolls in layers or patches, the individual elements being larger and darker than those of cirrocumulus and smaller than those of
How a cumulus cloud is formed?
The word “cumulus” is Latin for the word “heap.”.When warm, moist air rises, water vapor eventually cools and condenses on particles (called condensation nuclei) into tiny water droplets. As the process continues, water droplets continue to accumulate upwards, creating heaps visible in the sky as white, fluffy clouds.
How high are the clouds?
Clouds are classified into four basic categories, depending largely on the height of their bases above the ground. High-level clouds, called cirrus clouds, can reach heights of 20,000 feet (6,000 meters) and are typically thin. They do not produce rain and often indicate fair weather. They are usually made up of ice.