While the two can look similar, cirrocumulus does not have shading and some parts of altocumulus are darker than the rest. Arcus Clouds: What They Are And How They Form, Mother Of Pearl Clouds: Explaining The Appearance Of Nacreous Clouds, Cap Cloud – What It Is And How It Differs From Lenticular Clouds, Facts About The Aurora Borealis: What The Northern Lights Are And How They Occur, Facts About The Thermosphere: What It Is, And It’s Defining Characteristics, Facts About The Stratosphere: What It Is And Its Defining Characteristics, Difference Between Land Breeze And Sea Breeze. They typically appear earlier in the day when it’s sunny.
Cloud types are sorted in alphabetical order except where noted.
Of the multi-level genus-types, those with the greatest convective activity are often grouped separately as towering vertical. Like cumulonimbus clouds, they are associated with heavy precipitation, but, unlike cumulonimbus, you can’t pick out individual nimbostratus clouds. The Latin word “alto” (“high”) indicates a cloud in the middle of the troposphere that is below the high cirro-type clouds. Though they belong to the middle-level category, they may sometimes descend to lower altitudes. Unlike the two previously mentioned high-level clouds, they have a very smooth appearance. Often observed during warm and humid mornings in the middle atmosphere, these clouds can signal the onset of thunderstorms or cold fronts.
These clouds are called fog. This is because these clouds are sometimes extremely thick and tall and they often grow upward in size. Copyright 2020 by Own Your Weather. No differentiated species (always nebulous). We definitely have stratus clouds in the sky in TN today - looks really dreary and depressing here! Cumulonimbus mamma (WMO genus and supplementary feature) – Cb with pouch-like protrusions that hang from under anvil or cloud base.
Cirrus clouds are thin, wispy clouds that often appear on days with fair weather conditions and low winds. Floccus (Flo) – "Tufted": Applies to stratocumuliform (Sc flo, Ac flo, Cc flo) and high cirriform (Ci flo); indicates some mid or high-level instability. Most genera are divided into species with Latin names, some of which are common to more than one genus. Despite the lack of a strato- prefix, layered cirrocumulus is physically a high stratocumuliform genus.[9]. Rope – (slang) narrow, sometimes twisted funnel type cloud seen after a tornado dissipates. Cumulus clouds that do not get very tall are indicators of fair weather. Vertically Developed Clouds Probably the most familiar of the classified clouds is the cumulus cloud. They start at a low cloud level and can grow and expand up to the highest level. You’ll commonly see this types of clouds in an advancing warm frontal system, preceding nimbostratus clouds. And it’s true, there are some cloud types that look very similar to each other. Stratocumulogenitus – partial transformation of stratocumulus. Cumulus clouds are the puffy clouds that look like puffs of cotton. ), They are instantly recognizable with their white, fluffy round tops and flat bottoms. A Shelf cloud is a low and horizontal shaped cloud. Small cumulus are commonly grouped with the low clouds because they do not show significant vertical extent All rights reserved. A Comprehensive Guide. They usually appear between lower stratus clouds and higher cirrus clouds, and normally precede altostratus when a warm frontal system is advancing. They do, sometimes, create what is called Virga. The precipitation associated with these dreary looking clouds mostly consists of mist or a light drizzle. With no precipitation associated with them, they are often referred to as "fair weather clouds". Translucidus – "Translucent": Thin translucent patch or sheet of stratiform or stratocumuliform. Even meteorologists can sometimes struggle with identifying certain clouds, so it helps to have a few tricks to fall back on. Anvil (WMO supplementary feature incus) – the anvil top of a cumulonimbus cloud. 4) Altocumulus Clouds.
They’re thin and wispy with a silky sheen appearance. Our guide to research paper topics has over 100 topics in ten categories so you can be sure to find the perfect topic for you. And so I never did it. Starting at a low level and building up in height, the clouds are usually loaded with moisture and associated with long periods of persistent rain or snowfall. Thx so much, so helpful... trying to study for geo is way easier now.
Moreover, I was drawn in by the beautiful photographs. Nomenclature works the same way as for genitus mother clouds except for the. From his Essay of the Modifications of Clouds (1803) Luke Howard divided clouds into three categories; cirrus, cumulus and stratus.
Clouds may also form in contact with the ground surface, too. This is a bit trickier than just deciding on shape and can take some practice to get good at it, but once you can reliably tell where a cloud is in the sky along with its shape, you often have enough info to correctly identify it. Middle clouds seldom produce any rainfall.
Collar cloud (WMO velum accessory cloud) – ring shape surrounding upper part of wall cloud.
There are usually no patches of blue sky when these clouds appear, but the sun is often visible as a dimly lit disk behind the clouds (although no shadows appear on the ground). Altostratus often spread over thousands of square miles and are strongly linked to light rain or snow. Autumn Skies Online Pty Ltd is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. (Cold winter months with subzero temperatures are the exception when you will find ice crystals present in these low-altitude clouds.). Cumulus clouds are vertically developing clouds which mean they can become extremely tall clouds. Stratus clouds are made up of thin layers of clouds that are formed close to the ground. At these heights temperatures are below freezing point, meaning the water moisture in the clouds is in the form of ice crystals or supercooled water droplets. They often are arranged in parallel rows.
It is within this space, dominated by updrafts and downdrafts, that all the elements necessary for the development of a storm system are formed.
Rachel Vega from Massachusetts on March 11, 2012: Oh, I thought I had commented on this one! (Their shape is often compared to that of a cauliflower.). You can easily distinguish a stratus cloud by the long horizontal layers of cloud which have a fog-like appearance.
The genus types and some sub-types are arranged from top to bottom in approximate descending order of average overall altitude range. Want to improve your SAT score by 160 points or your ACT score by 4 points? it was okay . Backsheared anvil – (slang) anvil that spreads upwind, indicative of extreme weather. I voted Up, beautiful and interesting. They are one of the rarer types of clouds and usually don’t last long.
Stratus clouds are thick, gray clouds that look like fog that hasn't touched the ground.
At the low-altitude base, the cloud is mostly made of water droplets but the high-altitude summit is dominated by ice crystals.
Stratus clouds hang low in the sky as a flat, featureless, uniform layer of grayish cloud. The word cumulus is Latin for "heap" or "pile." Upon contact with ice crystals or any other object like dust or pollen, however, they immediately freeze into crystal form.). The foundation consists of 10 major cloud types. The 5 Strategies You Must Be Using to Improve 4+ ACT Points, How to Get a Perfect 36 ACT, by a Perfect Scorer.
Unfortunately I've forgotten most of it so your hub was a great refresher along with some new and interesting facts. But you know what they say, "Practice makes perfect". There are ten main types of clouds: You can identify these different kinds of clouds in three main ways: There are also various tips you can use to differentiate between two types of clouds that look similar.
Cirrogenitus – partial transformation of cirrus. There are many different types of clouds with different names because of their place in the sky, what they look like, and how pillowy or wisp-like they look. This was once of my favourite things to learn about in high school. Clouds of the genus stratocumulus are lumpy, often forming in slightly unstable air, and they can produce very light rain or drizzle. I had to take a final exam including the different type of clouds and their subcategories, and boy did this help me pass! They are called multi-level clouds because of their ability to spread through the lower, middle, and upper cloud levels.
Altostratogenitus – formed by the partial transformation of altostratus. If the precipitation becomes continuous, it may thicken into nimbostratus which can bring precipitation of moderate to heavy intensity. Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius?
Duplicatus – Latin for "Double": Closely spaced often partly merged layers of cloud in one of several possible forms. You may have noticed from the last section on the different kinds of nimbus clouds, that different clouds types exist beyond just cirrus, cumulus, stratus, and nimbus. Pannus – Latin for "shredded cloth": A ragged or shredded accessory cloud that forms in precipitation below the main cloud. A dead language is a language no longer in use, and with that main characteristic, the words of the dead language have no impetus to change what they mean.
They are sub-classified alpha-numerically according to specific details of their cirriform physical structure. There are a total of four main groups with the ten major cloud systems organized within each group. It is formed when convectively stable moist air cools to saturation at high altitude, forming ice crystals. Clouds are also classified by their altitude and their ability to create precipitation. One of their standout features is taking up large portions of the sky at a time. Layered forms of altocumulus are generally an indicator of limited convective instability, and are therefore mainly stratocumuliform in structure. When viewed from a distance, cumulonimbus clouds appear to have a low dark base, with the clouds above it building up to great heights, creating a spectacular towering effect. Radiatus – "Radial": Clouds in one of several possible forms arranged in parallel lines that appear to converge at a central point near the horizon. harvnb error: no target: CITEREFDoughertyEsposito2009 (, Altocumulus stratiformis translucidus undulatus, International Civil Aviation Organization, "Nacreous and polar stratospheric clouds", "Automated CB and TCU detection using radar and satellite data: from research to application", "Cataractagenitus International Cloud Atlas Section 2.1.3.6.5", http://cimss.ssec.wisc.edu/goes/blog/archives/555, "Mysterious waves seen in Venus's clouds", National Aeronautics and Space Administration, "NASA SP-441: Viking Orbiter Views of Mars", "Neptune's Atmosphere: Composition, Climate, & Weather", http://nephology.eu International Cloud Atlas online, Introduction to Clouds (National Weather Service), Ten Basic Cloud Types (National Weather Service), Nitric acid and water polar stratospheric clouds, https://en.wikipedia.org/w/index.php?title=List_of_cloud_types&oldid=984951626, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License.
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