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A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over land has been noted across North and South America, Europe, and Asia, with a maximum in activity noted during the late afternoon and evening hours.

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  • A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over land has been noted across North and South America, Europe, and Asia, with a maximum in activity noted during the late afternoon and evening hours. Forms of MCS that develop within the tropics use either the Intertropical Convergence Zone (ITCZ) or monsoon troughs as a focus for their development, generally within the warm season between spring and fall. One exception is that of lake-effect snow bands, which form due to cold air moving across relatively warm bodies of water, and occurs from fall through spring. Polar lows are a second special class of MCS which form at high latitudes during the cold season. Once the parent MCS dies, later thunderstorm development can occur in connection with its remnant mesoscale convective vortex (MCV). Mesoscale convective systems are important to the United States rainfall climatology over the Great Plains since they bring the region about half of their annual warm season rainfall. (en)
  • Un système convectif de méso-échelle (SCM) est un ensemble d'orages qui se répartissent avec le temps, en ligne ou en zones, pour former des entités qui peuvent occuper de plusieurs dizaines à quelques centaines de kilomètres de longueur ou de diamètre (méso-échelle). Ces systèmes météorologiques sont souvent associés avec du temps violent car les orages intenses qui les composent peuvent produire des pluies torrentielles causant des inondations, des vents de plus de 90 km/h et parfois de la grosse grêle. Ces phénomènes, même s'ils ont une durée de vie en général plus limitée que ceux produits par les dépressions synoptiques, affectent quand même de larges zones à cause du déplacement du système. (fr)
  • メソ対流系(メソたいりゅうけい、英: mesoscale convective system、MCS)とは、メソスケールでの気象のシステムのひとつ。ひとつひとつの降水セルが多数発生して、いくつかの種類のセル集団、いわばセルの複合体に発達して、より激しい天候(荒天)をもたらすもの。集中豪雨などの解明方法のひとつとして用いられる考え方。 (ja)
  • Per Sistema convettivo a mesoscala (in inglese Mesoscale Convective System, o "MCS") si intende un sistema temporalesco esteso per decine o centinaia di chilometri (su mesoscala, appunto), nato dall'unione di più cumulonembi a diversi stati evolutivi (multicella). In alcuni casi può insistere su zone relativamente ristrette per ore ed ore, portando a nubifragi o alluvioni lampo. Un MCS può avere una forma lineare, nel caso – ad esempio – la genesi sia legata al passaggio di una linea frontale, oppure circolare se in generale nasce nel settore caldo di una perturbazione, ossia nello spazio che intercorre tra fronte caldo e fronte freddo. Le piogge che accompagnano un MCS spesso sono copiose e molto violente, a tratti accompagnate da grandine. La struttura dell'MCS è anche capace di generare trombe d'aria, specie al di sotto dei cumulonembi più giovani, nei quali le correnti ascensionali sono ancora intense.In particolare nel settore meridionale di un MCS si possono stabilire condizioni ideali alla formazione di vere e proprie supercelle, talvolta associate a tornado; tuttavia questa circostanza è piuttosto rara. (it)
  • MCS (ang. Mesoscale Convective System, pol. mezoskalowy układ konwekcyjny) – rozległa burza wielokomórkowa (tworząca się zazwyczaj z kilku lub z kilkunastu osobnych komórek burzowych), która trwa przez kilka godzin lub dłużej. MCS-y mogą przybierać zarówno kształty owalne, jak i liniowe. Mogą być tropikalnymi cyklonami, liniami szkwału, jak również układami MCC (ang. Mesoscale Convective Complex). MCS-em nazywa się często taki układ burzowy, który z powodu niewystarczających parametrów (rozmiar, czas trwania, ekscentryczność) nie może zostać sklasyfikowany jako MCC. (pl)
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  • Un système convectif de méso-échelle (SCM) est un ensemble d'orages qui se répartissent avec le temps, en ligne ou en zones, pour former des entités qui peuvent occuper de plusieurs dizaines à quelques centaines de kilomètres de longueur ou de diamètre (méso-échelle). Ces systèmes météorologiques sont souvent associés avec du temps violent car les orages intenses qui les composent peuvent produire des pluies torrentielles causant des inondations, des vents de plus de 90 km/h et parfois de la grosse grêle. Ces phénomènes, même s'ils ont une durée de vie en général plus limitée que ceux produits par les dépressions synoptiques, affectent quand même de larges zones à cause du déplacement du système. (fr)
  • メソ対流系(メソたいりゅうけい、英: mesoscale convective system、MCS)とは、メソスケールでの気象のシステムのひとつ。ひとつひとつの降水セルが多数発生して、いくつかの種類のセル集団、いわばセルの複合体に発達して、より激しい天候(荒天)をもたらすもの。集中豪雨などの解明方法のひとつとして用いられる考え方。 (ja)
  • MCS (ang. Mesoscale Convective System, pol. mezoskalowy układ konwekcyjny) – rozległa burza wielokomórkowa (tworząca się zazwyczaj z kilku lub z kilkunastu osobnych komórek burzowych), która trwa przez kilka godzin lub dłużej. MCS-y mogą przybierać zarówno kształty owalne, jak i liniowe. Mogą być tropikalnymi cyklonami, liniami szkwału, jak również układami MCC (ang. Mesoscale Convective Complex). MCS-em nazywa się często taki układ burzowy, który z powodu niewystarczających parametrów (rozmiar, czas trwania, ekscentryczność) nie może zostać sklasyfikowany jako MCC. (pl)
  • A mesoscale convective system (MCS) is a complex of thunderstorms that becomes organized on a scale larger than the individual thunderstorms but smaller than extratropical cyclones, and normally persists for several hours or more. A mesoscale convective system's overall cloud and precipitation pattern may be round or linear in shape, and include weather systems such as tropical cyclones, squall lines, lake-effect snow events, polar lows, and mesoscale convective complexes (MCCs), and generally forms near weather fronts. The type that forms during the warm season over land has been noted across North and South America, Europe, and Asia, with a maximum in activity noted during the late afternoon and evening hours. (en)
  • Per Sistema convettivo a mesoscala (in inglese Mesoscale Convective System, o "MCS") si intende un sistema temporalesco esteso per decine o centinaia di chilometri (su mesoscala, appunto), nato dall'unione di più cumulonembi a diversi stati evolutivi (multicella). In alcuni casi può insistere su zone relativamente ristrette per ore ed ore, portando a nubifragi o alluvioni lampo. (it)
rdfs:label
  • Système convectif de méso-échelle (fr)
  • Sistema convettivo a mesoscala (it)
  • メソ対流系 (ja)
  • Mesoscale convective system (en)
  • Mezoskalowy układ konwekcyjny (pl)
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