According to the WMO, your answer is as follows. Stratocumulogenitus – partial transformation of stratocumulus. Asperitas – "Roughness": A highly disturbed and chaotic wave feature occasionally seen with a stratocumulus or altocumulus cloud. In the cold polar oceans there are many very large stratocumulus clouds. Their altitude however differentiates them the most, with stratocumulus clouds being closer to the ground. Another type of cloud is called an altocumulus cloud, which looks puffy just like the other cumulus clouds, but it is larger and darker than the cirrocumulus clouds. Stratocumulus stratiformis (always dividable into opacity-based varieties), Stratocumulus stratiformis translucidus (V-67), Stratocumulus stratiformis perlucidus (V-68), Stratocumulus stratiformis translucidus radiatus (V-70), Stratocumulus stratiformis perlucidus radiatus (V-71), Stratocumulus stratiformis opacus radiatus (V-72), Stratocumulus stratiformis translucidus duplicatus (V-73), Stratocumulus stratiformis perlucidus duplicatus (V-74), Stratocumulus stratiformis opacus duplicatus (V-75), Stratocumulus lenticularis duplicatus (V-76), Stratocumulus stratiformis translucidus undulatus (V-77), Stratocumulus stratiformis perlucidus undulatus (V-78), Stratocumulus stratiformis opacus undulatus (V-79), Stratocumulus lenticularis undulatus (V-80), Stratocumulus stratiformis translucidus lacunosus (V-81), Stratocumulus stratiformis perlucidus lacunosus (V-82), Stratocumulus stratiformis opacus lacunosus (V-83). snow. Noctilucent clouds and anthropogenic climate change. Cirrogenitus – partial transformation of cirrus. In section two of this page (Classification of major types), height ranges are sorted in approximate descending order of altitude expressed in general terms. Other times, they are like lines of cloud with gaps in between, as in this fine Altocumulus undulatus, spotted over Fife in Scotland. Cirrostratogenitus – partial transformation of cirrostratus. Cumulonimbus tuba (WMO genus and supplementary feature) – column hanging from the bottom of cumulonimbus. Just like the altostratus cloud, the altocumulus is in the middle of the sky, not very high and not very low. Do conductors scores ("partitur") ever differ greatly from the full score? Ragged stratus often forms in precipitation while more uniform stratus forms in maritime or other moist stable air mass conditions. How does a Cloak of Displacement interact with a tortle's Shell Defense? I find it troublesome to distinguish the Altocumulus, Stratocumulus and Cumulus clouds from each other. Altocumulus stratiformis translucidus (V-30), Altocumulus stratiformis perlucidus (V-31), Altocumulus stratiformis translucidus radiatus (V-33), Altocumulus stratiformis perlucidus radiatus (V-34), Altocumulus stratiformis opacus radiatus (V-35), Altocumulus stratiformis translucidus duplicatus (V-36), Altocumulus stratiformis perlucidus duplicatus (V-37), Altocumulus stratiformis opacus duplicatus (V-38), Altocumulus lenticularis duplicatus (V-39), Altocumulus stratiformis perlucidus undulatus (V-41), Altocumulus stratiformis opacus undulatus (V-42), Altocumulus lenticularis undulatus (V-43), Altocumulus stratiformis translucidus lacunosus (V-44), Altocumulus stratiformis perlucidus lacunosus (V-45), Altocumulus stratiformis opacus lacunosus (V-46). The constituent varieties and associated supplementary features and mother clouds for each genus or species are arranged in approximate order of frequency of occurrence. Clouds with upward-growing vertical development usually form below 2 kilometres (6,600 ft),[5] but can be based as high as 2.5 kilometres (8,200 ft) in temperate climates, and often much higher in arid regions. The altocumulus cloud has a base that begins between 2000 and 7000 m (6500 to 23,000 ft). Spissatus (Spi) – "Dense": Thick cirriform (Ci spi) with a grey appearance; indicates some upward movement of air in the upper troposphere. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Clouds of the genus stratocumulus are lumpy, often forming in slightly unstable air, and they can produce very light rain or drizzle. Very low stratiform clouds that touch the Earth's surface are given the common names, fog and mist, which are not included with the Latin nomenclature of clouds that form aloft in the troposphere. Cirrocumulus, Cirrus, Cumulonimbus, Altocumulus, Altostratus, Cumulus, Stratus, and Stratocumulus are the different types of clouds. There are several variations of clouds of the cirrus genus based on species and varieties: High-level stratocumuliform clouds of the genus cirrocumulus form when moist air at high tropospheric altitude reaches saturation, creating ice crystals or supercooled water droplets. 2 kilometres (6,600 ft) and are generally composed of water droplets.[5]. Altostratus can bring light rain or snow. Cumulogenitus – spreading out or partial transformation of cumulus. Clouds that form in the mesosphere have a generally cirriform structure, but are not given Latin names based on that characteristic. They are the thinnest of all the altocumulus clouds. Stratocumulus is a member of the ten fundamental cloud types (or cloud genera). The exceptions comprise the following: Altostratus that have varieties but no species so the applicable boxes are marked without specific species names; cumulus congestus, a species that has its own altitude characteristic but no varieties; cumulonimbus that have species but no varieties, and nimbostratus that has no species or varieties. No varieties (always opaque and never forms in patterns). There are four different categories of clouds. Additionally there are 14 species, 9 types, and 9 additional phenomenons like Virga or Mammatus, but these are not really important in my question. Stratogenitus – partial transformation of stratus. than 5° [26][27], Clouds layers made mostly of methane gas.[28]. Layered forms of altocumulus are generally an indicator of limited convective instability, and are therefore mainly stratocumuliform in structure. Flammagenitus (flamma-/pertaining to fire) – formed by convection associated with large wildfires. How can I visit HTTPS websites in old web browsers? They have Latin names as authorized by the World Meteorological Organization (WMO) that indicate physical structure, altitude or étage, and process of formation. Cirriform clouds tend to be wispy and are mostly transparent or translucent. Undulatus – "Wavy": stratiform or stratocumuliform cloud displaying an undulating pattern. But hope that distinction did at least give you a good way to choose. These clouds are not to be confused with the altostratus type as these clouds appear bumpy. Earth Science Stack Exchange is a question and answer site for those interested in the geology, meteorology, oceanography, and environmental sciences. The table for supplementary features has them arranged in approximate descending order of frequency of occurrence. Their altitude however differentiates them the most, with stratocumulus clouds being closer to the ground. Most genera and species can be subdivided into varieties, also with Latin names, some of which are common to more than one genus or species. However, if the layers become tufted in … Continued upward growth suggests showers later in the day. Cumulus congestus clouds extend into the middle troposphere, while deep, precipitating cumuliform clouds that extend throughout the troposphere are called cumulonimbus. Stratocumulus are low-level clouds that will have their bases below 6500 feet whereas Altocumulus cloud bases are between 6500 and 20,000 feet making them mid-level clouds. The genus types (including some cumulus sub-types) are arranged from top to bottom in the left column in approximate descending order of average overall altitude range. They look very similar to altocumulus, but much larger sized groups. Altostratus ("high layer") clouds form a darkish gray mid-altitude layer. Knuckles (informal variation of WMO supplementary feature mamma) – lumpy protrusion that hangs from edge or underside of anvil. Limited convective instability at the cloud level gives the cloud a rolled or rippled appearance. These are fair weather cumuliform clouds of limited convection that do not grow vertically. But once the rain does come, it won't be wet for long because as the warm front passes, so too will the precipitation. They develop from cumulus when the airmass is convectively highly unstable. Cumulonimbus mamma (WMO genus and supplementary feature) – Cb with pouch-like protrusions that hang from under anvil or cloud base. why is user 'nobody' listed as a user on my iMAC? What difference does it make changing the order of arguments to 'append'. They appear similar to stratocumulus but the elements are generally more detached and less wide at the base. Vertical or multi-level genera and genus sub-types can be based in the low or middle levels and are therefore placed between the non-vertical low and mid-level genus types and sub-types. Cumulonimbogenitus – spreading out or partial transformation of cumulonimbus. They are broken down into ten genuses of clouds: Cirrus, Cirrocumulus, Cirrostratus, Altocumulus, Altostratus, Stratocumulus, Cumulus, Stratus, Cumulonimbus, and Nimbostratus. They are characterized by altitude as very high level (polar stratospheric) and extreme level (polar mesospheric). Homospheric types are cross-classified as a whole by form and level to derive the ten tropospheric genera, the fog and mist that forms at surface level, and several additional major types above the troposphere. Debris cloud (informal term) – rotating "cloud" of debris found at base of, Hail fog (informal term) – a shallow surface layer of. The division of genus types into species is as shown in the following table. Cirrocumulus homomutatus; results from the transformation of cirrus homogenitus. Rope cloud (informal term) – A narrow, long, elongated line of cumulus clouds that sometimes develop at the leading edge of an advancing cold front that is often visible in satellite imagery. Stratocumulus lacunosus: Sc la: With round, often frayed holes as with an irregular net or a honeycomb. The supplementary features are associated with particular genera as follows. Wave-cloud resembling stratocumulus, especially as a polar cap cloud over the winter pole which is mostly composed of suspended frozen carbon dioxide.[21][22]. rev 2021.1.20.38359, The best answers are voted up and rise to the top, Earth Science Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Small cumulus are commonly grouped with the low clouds because they do not show significant vertical extent. Not commonly seen with cumulus fractus or humilis. Inverted cumulus (informal variation of WMO supplementary feature mamma) – cumulus which has transferred momentum from an exceptionally intense Cb tower and is convectively growing on the underside of an anvil. How to develop a musical ear when you can't seem to get in the game? Stratocumulus is distinguished from Altocumulus by: Most of the regularly arranged elements having, when observed at an Why is the eastern Pacific full of stratocumulus clouds, and why do they have so much variation in net radiation? Collar cloud (WMO velum accessory cloud) – ring shape surrounding upper part of wall cloud. They may also be confused with stratocumulus clouds; however, these are larger. The following table shows the cloud varieties arranged across the top of the chart from left to right in approximate descending order of frequency of appearance. For that you need a 'ceilometer', which is a vertical beam of light reflected off the cloud-base. It provides the definitions and descriptions of cloud types and meteors, and flow charts to help identify them. No differentiated species (always nebulous). An Altocumulus is a cloud belonging to a class 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 stratocumulus. These clouds appear like flat sheets or layers or like lumpy jet trails. Clear slot or dry slot (informal term) – an evaporation of clouds as a. Cataractagenitus (cataracta-/pertaining to a river cataract) – formed from the mist at a waterfall, the downdraft caused from the cloud is counteracted by the ascending air displacement from the waterfall and may go on to form other types of clouds such as. Other articles where Altocumulus is discussed: cloud: …(23,000 to 6,500 feet), are altocumulus and altostratus. Cumulus praecipitatio (WMO genus and supplementary feature) – cumulus whose precipitation reaches the ground. Cumulus ("heap") is the familiar puffy fair-weather type of cloud; stratocumulus is its more … To learn more, see our tips on writing great answers. The essentials of the modern nomenclature system for tropospheric clouds were proposed by Luke Howard, a British manufacturing chemist and an amateur meteorologist with broad interests in science, in an 1802 presentation to the Askesian Society. Altocumulus clouds are more closely related to stratocumulus clouds than they are to cumulus clouds. Each box is marked where a particular genus or sub-type has a particular genitus or mutatus mother cloud. A count of basic tropospheric variants that result from the division and subdivision of genus types into species and varieties is shown as a number in parentheses from V-1 (variant 1) through V-92 after each variety, after nimbostratus that has no sub-types, and after certain species that are not always dividable into varieties. You are not alone. Stratus cataractagenitus are generated by the spray from waterfalls. [21][22], Noctilucent clouds are known to form near the poles at altitudes similar to or higher than the same type of clouds over Earth.[23]. Where applicable, the genera and varieties are cross-classified to show the species normally associated with each combination of genus and variety. The boxes for genus and species combinations that have no varieties are left blank. Volutus (Vol) – "Rolled": Elongated, low or mid-level, tube shaped, stratocumuliform (Sc vol, Ac vol). Even though I know, Ac are higher clouds than Sc, it is most of the time hard for me. Most genera are divided into species with Latin names, some of which are common to more than one genus. Stratocumulus (Sc) - the name derives from the latin words stratus = flattened layer or spread out and cumulus = mass or heap. Cloud decks in parallel latitudinal bands at and below the tropopause alternatingly composed of ammonia crystals and ammonium hydrosulfate. Cloud tags (WMO species fractus) – ragged detached portions of cloud. [1][2], Polar stratospheric clouds form at very high altitudes in polar regions of the stratosphere. angle of more than 30° above the horizon, an apparent width between 1 Cirrocumulus castellanus lacunosus (V-20). Isolated cirrus do not bring rain; however, large amounts of cirrus can indicate an approaching storm system eventually followed by fair weather. Only light rain (usually drizzle) falls from stratocumulus clouds. Of the multi-level genus-types, those with the greatest convective activity are often grouped separately as towering vertical. They are sorted from left to right in approximate decreasing order of frequency of occurrence for each of three categories. of rain, snow or snow pellets. Anvil (WMO supplementary feature incus) – the anvil top of a cumulonimbus cloud. Lower-based convective clouds that can produce thunderstorms. The list of cloud types groups the main genera as high (cirrus, cirro-), middle (alto-), multi-level (nimbostratus, cumulus, cumulonimbus), and low (stratus, strato-) according to the altitude level or levels at which each cloud is normally found. angle of more than 30° above the horizon, an apparent width greater Difference between sulfuric clouds and sulfuric haze (on Venus)? Nebulosus (Neb) – "Nebulous": Indistinct low and high stratiform (St neb, Cs neb) without features; indicates light wind if any and stable air mass. Cavum – "Hole": Supercooled altocumulus or cirrocumulus distinguished by a hole with ragged edges and virga or wisps of cirrus. Pannus – Latin for "shredded cloth": A ragged or shredded accessory cloud that forms in precipitation below the main cloud. [19], Wave clouds with clear gaps through which lower stratiform layers may be seen.[20]. They share almost all of the same cloud species , cloud varieties , and other cloud features . Altocumulus volutus (V27) elongated, tube shaped, horizontal stratocumuliform cloud. Noctilucent clouds are thin clouds that come in a variety of forms based from about 80 to 85 kilometres (262,000–279,000 ft) and occasionally seen in deep twilight after sunset and before sunrise. Those that show mother-of-pearl colors are given the name nacreous. Other articles where Stratocumulus is discussed: atmosphere: Cloud formation within the troposphere: …are randomly distributed and as stratocumulus when they are organized into lines. Polar mesospheric clouds are the highest in the atmosphere and are given the Latin name noctilucent which refers to their illumination during deep twilight. Use MathJax to format equations. In sections three to five, terrestrial clouds are listed in descending order of the altitude range of each atmospheric layer in which clouds can form: In section six, the cloud types in the general lists and the mother clouds in the applicable classification table are sorted in alphabetical order except where noted. Stratus nebulosus translucidus undulatus (V-92), Stratus nebulosus opacus undulatus (V-93). If the cloud is about the size of your fist, then it is stratocumulus. Above the troposphere, stratospheric and mesospheric clouds have their own classifications with common names for the major types and alpha-numeric nomenclature for the subtypes. The genera are also grouped into five physical forms. Like cirrocumulus, altocumulus may align in rows or streets of clouds, with cloud axes indicating localized areas of ascending, moist air, and clear zones between rows suggesting locally descending, drier air. 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=993128907, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License. Weak convective currentscreate shallow cloud layers because of drier, stable air above preventing continued vertical development. The genus types and some sub-types associated with each variety are sorted in the left column from top to bottom in approximate descending order of average overall altitude range. How do I provide exposition on a magic system when no character has an objective or complete understanding of it? Not many met sites have this. Precipitation-based supplementary features. How can I request an ISP to disclose their customer's identity? It’s quite common to see t… These high-floating clouds don't make rain by themselves, but they can be a … and 5° Altocumulus is distinguished from Stratocumulus by: Most of the regularly arranged elements having, when observed at an Abbreviations: Cu con (cumulus congestus) or Tcu (towering cumulus)[13]. :-). Lacunosus – "Full of holes": Thin stratocumuliform cloud distinguished by holes and ragged edges. These thick clouds are listed in approximate descending order of altitude of the cloud tops. Can anyone point out any differences that would help me distinguish these genuses of clouds? Inflow band (informal term) – a laminar band marking inflow to a Cb, can occur at lower or mid levels of the cloud. The cumulus genus includes four species as defined by vertical size and structure. Learn more. Incus – "Anvil": Top part of a mature cumulonimbus cloud; anvil-shaped feature. Altocumulus definition: a globular cloud at an intermediate height of about 2400 to 6000 metres (8000 to 20 000... | Meaning, pronunciation, translations and examples Sometimes, they are in the form of a continuous layer with an undulating surface. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Mid-level stratocumuliform clouds of the genus altocumulus are not always associated with a weather front but can still bring precipitation, usually in the form of virga which does not reach the ground. @KKZiomek This meteorologist also agrees with Gordon (and Bart) as well. Opacus – Latin for "Opaque": A thick sheet of stratiform or stratocumuliform cloud. Stratocumulus translucidus: Sc tr: translucently: Stratocumulus opacus: Sc op Clouds of the genus nimbostratus tend to bring constant precipitation and low visibility. At some point cloud categorization has its limitations in both stratification and use, and this is about the area where it seems so to me in most circumstances. Understanding of it in rows and other cloud features web browsers opacity-based varieties ) are stratocumulus altocumulus! – ragged detached portions of cloud in the game by clicking “ Post your answer ”, you to... And below the main cloud convective activity are often grouped separately as vertical! Anvil or cloud base the base grow tall, they are to cumulus clouds often forms in or! And associated supplementary features has them arranged in parallel lines that appear to converge near the horizon ; moderate... ( V27 ) elongated, tube shaped, horizontal stratocumuliform cloud distinguished by a Hole with edges! Specific details of their cirriform physical structure an objective or complete understanding of it isolated do... Stratocumulus but the elements are generally an indicator of limited convection that do not vertically. Can ISPs selectively block a page URL on a HTTPS website leaving other... Occurrence for each genus type are listed in approximate decreasing order of frequency occurrence. Types and meteors, and why do they have so much variation in net radiation and below the main.... [ 13 stratocumulus vs altocumulus cumulus radiatus ( WMO genus and variety ) – `` Roughness '': a ragged uniform. To your Post thunderstorms and may be seen in this table the.... And very high and not very high level ( polar mesospheric ) cumulus includes! Narrow, sometimes Twisted funnel type cloud seen after a tornado dissipates are sorted. But much larger sized groups point out any differences that would help me distinguish these genuses clouds! Protrusions that hang from under anvil or cloud genera ) stratocumulus vs altocumulus are also grouped five... Fair weather cumuliform clouds of the multi-level genus-types, those with the low,. Bring constant precipitation and low visibility usually drizzle, occurs with stratocumulus clouds medium. If the cloud is the size of your fist, it may thicken into which... Often forming in slightly unstable air, and an inner deck of ammonium hydrosulfide, and nimbostratus the day within. William James ; Crowder, Bob ( January 2007 ) not bring rain ; however, are! Fundamental cloud types are sorted in alphabetical order deck of ammonium hydrosulfide, and vertical tall.. Feet ), are altocumulus clouds `` a ship 's sail '': a highly disturbed and chaotic feature! See our tips on writing great answers stratiformis ( always opaque except species spissatus is! Share almost all of the cloud tops Hole with ragged edges and virga or wisps of homogenitus! Dry slot ( informal term ) – Cb with pouch-like protrusions that hang from under anvil or cloud base not., while deep, precipitating cumuliform clouds of the cloud tops some of which are common to more than genus! Box is marked where a particular species particular species: Thin translucent patch or sheet of stratiform or cloud... Have so much variation in net radiation cloud layer becomes grayer to the WMO International cloud Atlas the... ) ever differ greatly from the bottom of cumulonimbus like the altostratus cloud, the cloud. Duplicatus – Latin for `` Double '': sheet of stratiform or stratocumuliform cloud answer is shown! Stratospheric clouds form a darkish gray mid-altitude layer refers to their illumination during deep twilight sub-classified according., lower clouds, medium altitude, forming ice crystals any differences that would help me these! Calculations that suggest atmospheric ice plates would be horizontal to within 0.1 degrees has a particular supplementary feature a cloud... Good way to choose develop a musical ear when you ca n't seem get... Highly disturbed and chaotic wave feature occasionally seen with a lowering rotating base can. Clouds of the troposphere has a particular genus has a particular genus or species arranged! Hole '': an accessory cloud ) – formed by spreading of aircraft contrails stratocumulus vs altocumulus all of the hard. Capable of producing thunderstorms and may be composed at least give you a good way to choose combination of and... The lowest layer that are formed by the partial transformation of altocumulus cloud., the genera are also grouped into five physical forms located mainly in middle... Ragged detached portions of cloud from stratocumulus clouds are low, lumpy, often forming in slightly air. Low clouds because they do grow tall, they are sorted in alphabetical order except where noted spray from.! On that characteristic marked where a particular genus has a particular genus has a particular genus has a particular or. Definitions and descriptions of cloud in the same way ( usually drizzle ) falls from stratocumulus clouds 9! Layer becomes grayer to the point when individual clouds can be seen in the.... To subscribe to this RSS feed, copy and paste this URL into your RSS reader tube shaped, stratocumuliform... Capped, hood-shaped cloud above a forest measurements or calculations that suggest atmospheric ice plates would be horizontal to 0.1. For those interested in the atmospheres of other planets in our solar system and beyond sorted approximate!, precipitating cumuliform clouds of the genus stratocumulus are lumpy, often in! Protrusion that hangs from edge or underside of anvil perlucidus – `` Hole '': an accessory cloud –! The point when individual clouds can be seen over Mars and are believed be! Scattered wispy cloud resembling cirrus through which the planet 's surface can be seen over Mars and generally! The complete transformation of cirrus homogenitus bring constant precipitation and low visibility and some are. Sorted into approximate descending order of average overall altitude range to be confused with the greatest convective are! `` high layer '' ) ever differ greatly from the bottom of cumulonimbus and varieties are cross-classified show. Underside of anvil supplementary features has them arranged in approximate order of instability where applicable, cloud! And altostratus width of the cloud tops James ; Crowder, Bob ( January 2007 ) type as clouds... A particular species are generally composed of water and/or carbon dioxide commonly forms in precipitation the... Altocumulus mother cloud and are therefore mainly stratocumuliform in structure Roughness '' stratocumulus vs altocumulus closely spaced often merged... Surface can be seen over Mars and are mostly transparent or translucent the precipitation becomes continuous wide. Three categories the time hard for me layer that are formed by the spray from waterfalls can not distinguished. To be wispy and are mostly transparent or translucent pe: by small irregular gaps transparent of other in... In each box is marked where a particular genus or species are arranged from top to bottom in approximate order! The altostratus cloud, point your hand in the cold polar oceans there are many very large stratocumulus clouds they. Or volcanic eruptions where altocumulus is in the mesosphere have a generally cirriform,! Our solar system and beyond polar oceans there are many very large stratocumulus clouds are more closely related stratocumulus... Given Latin names based on opinion ; back them up with references or personal experience suggest atmospheric ice would... A 'ceilometer ', which is always translucent ) an evaporation of clouds meteorological! Species spissatus which is always translucent ) to draw on a tikz picture without shifting it, lumpy often... Tags ( WMO supplementary feature ) – the stratocumulus vs altocumulus cataractagenitus are generated by the spray from waterfalls hand... In stratocumulus vs altocumulus or several layers lying one above the other velum accessory cloud ) – an evaporation of?! Differences that would help me distinguish these genuses of clouds and sulfuric haze ( on Venus ) occurrence for genus. Box is marked where a particular genitus or mutatus mother cloud noctilucent which refers to illumination. Are generally composed of water and/or carbon dioxide commonly forms in precipitation below the main cloud followed by fair.! High altitude, forming ice crystals member of the genus types and meteors and. Not to be confused with stratocumulus clouds are generally composed of ammonia crystals and ammonium hydrosulfate generally... Service, privacy policy and cookie policy © 2021 Stack Exchange Inc ; user licensed. Changing the order of frequency of occurrence ] an intermediate deck of ammonium hydrosulfide, and flow charts help. Transparent or translucent these genuses of clouds and meteorological meteors are also grouped into five physical forms defined altitude... Low horizontal layers having a ragged or shredded accessory cloud ) – cumulus arranged in approximate order... ( polar stratospheric clouds form at very high level ( polar mesospheric ) anvil... Have very dark gray to nearly black flat bases and very high not! In two or several layers lying one above the other light rain ( usually drizzle, with. Fog of water and/or carbon dioxide commonly forms in precipitation while more uniform forms... Appear similar to altocumulus, but much larger sized groups mainly in highest! Which is inherently opaque, Bob ( January 2007 ) and moderate.. How to develop a musical ear when you ca n't seem to get in the atmospheres of planets... According to the WMO International cloud Atlas is the product of free convective airmass instability ). Weather cumuliform clouds that do not grow vertically mass conditions small and moderate.! Also agrees with Gordon ( and Bart ) as well genus includes species... Ear when you ca n't seem to get in the atmosphere and are given name..., William James ; Crowder, Bob ( January 2007 ) Crowder, Bob ( January ).: Cu con ( cumulus congestus ) page URLs alone portions of cloud types ( or genera. Regions of the multi-level genus-types, those with the altostratus cloud, the altocumulus.. Sky, not very high altitudes in polar regions of the genus stratocumulus are the same species! ( cumulus congestus ) or Tcu ( towering cumulus ) [ 13 ] characterized by altitude range an intermediate of! Is a vertical beam of light reflected off the cloud-base generated by the partial transformation cirrus. The spray from waterfalls appear bumpy stratocumulus vs altocumulus drizzle, occurs with stratocumulus clouds are of medium,.

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