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COLD AIR FUNNEL CLOUD [2 records]
Record 1 - internal organization data 2023-03-17
Record 1, English
Record 1, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
- Atmospheric Physics
Record 1, Main entry term, English
- cold-air funnel
1, record 1, English, cold%2Dair%20funnel
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- cold-core funnel 2, record 1, English, cold%2Dcore%20funnel
correct
- cold core funnel cloud 3, record 1, English, cold%20core%20funnel%20cloud
correct
- cold-air funnel cloud 4, record 1, English, cold%2Dair%20funnel%20cloud
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A funnel cloud... that can develop from a small shower or thunderstorm when the air aloft is unusually cold. 5, record 1, English, - cold%2Dair%20funnel
Record number: 1, Textual support number: 1 CONT
Cold-air funnels typically do not reach the ground(funnel cloud), but when they do reach the ground as tornadoes, they are much less violent than the other types. 5, record 1, English, - cold%2Dair%20funnel
Record 1, Key term(s)
- cold air funnel
- cold core funnel
- cold air funnel cloud
Record 1, French
Record 1, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
- Physique de l'atmosphère
Record 1, Main entry term, French
- entonnoir d'air froid
1, record 1, French, entonnoir%20d%27air%20froid
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- tuba d'air froid 2, record 1, French, tuba%20d%27air%20froid
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Nuage en entonnoir [...] qui peut se former à partir d'une averse ou d'un orage peu intense lorsque l'air en altitude est anormalement froid. 2, record 1, French, - entonnoir%20d%27air%20froid
Record number: 1, Textual support number: 1 CONT
En règle générale, les tubas d'air froid ne touchent pas le sol (nuage en entonnoir). S'ils le font toutefois, ils constituent une forme de tornade beaucoup moins violente que les autres catégories. 2, record 1, French, - entonnoir%20d%27air%20froid
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1995-02-21
Record 2, English
Record 2, Subject field(s)
- Atmospheric Physics
Record 2, Main entry term, English
- gust front tornado
1, record 2, English, gust%20front%20tornado
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- gustnado 1, record 2, English, gustnado
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The common macroburst is... known as a gust front and is the leading edge of an evaporatively cooled downdraft... which pushes outward at the surface as a low level dome of cold air. Strong gusty winds develop behind the leading edge of the cold outflow, which eventually moves out ahead of the parent cloud. This phenomenon is observed in all storms when the downdraft is relatively intense, but is especially violent, and sometimes destructive, when storms are organized in a line(squall line) or exhibit supercell qualities. Some of these destructive gust fronts actually generate funnel clouds and tornadoes. Tornadoes of this type are referred to as gust front tornadoes or gustnadoes. 1, record 2, English, - gust%20front%20tornado
Record number: 2, Textual support number: 2 CONT
The gustnado has been accepted as a "type of tornado" but is not associated with the typical tornado characteristics. It is a brief, intense vortex that forms on the leading edge of severe gust fronts. Scud and debris or dirt may be seen but a condensation funnel is usually absent. They will last from a few seconds to a minute and are strong enough to cause minor damage. They are distinguished from a true tornado by their location under an advancing dark cloud bank ahead of the rain core. Although the air is rotating, the situation would group this event more appropriately with straight-line winds. 2, record 2, English, - gust%20front%20tornado
Record 2, French
Record 2, Domaine(s)
- Physique de l'atmosphère
Record 2, Main entry term, French
- tornade de front de rafales
1, record 2, French, tornade%20de%20front%20de%20rafales
proposal, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Tornade qui se forme au niveau d'un front de rafales. 2, record 2, French, - tornade%20de%20front%20de%20rafales
Record number: 2, Textual support number: 2 OBS
Avant de décrire les étapes qui conduisent à la formation des tornades, il faut en distinguer deux types principaux. Le premier, qu'on appellera «type A», rassemble les tornades les plus intenses qui se forment au sein d'orages violents [...]. L'autre catégorie, le «type B», regroupe des tornades généralement moins intenses qui apparaissent dans des zones de discontinuité entre masses d'air, au niveau du front de rafales pour des courants de densité intenses ou en association avec les bandes étroites de convection associées aux fronts froids. 3, record 2, French, - tornade%20de%20front%20de%20rafales
Record number: 2, Textual support number: 3 OBS
Les tornades et les trombes de type B se forment dans des zones de discontinuité entre masses d'air de caractéristiques cinématiques et thermodynamiques différentes, comme les fronts de rafales à l'avant des courants de densité ou certains fronts froids associés aux perturbations des latitudes moyennes [...]. En anglais, ces tornades de type B sont appelées «Gustnadoes», néologisme résultant de la contraction de «Gust Front», front de rafales des courants de densité, et de «Tornado». Les instabilités de Kelvin-Helmholtz qui apparaissent fréquemment à l'interface entre les deux flux, par suite du fort cisaillement horizontal du vent, favorisent le développement de tourbillons. 3, record 2, French, - tornade%20de%20front%20de%20rafales
Record number: 2, Textual support number: 4 OBS
Les tornades de type B se produisent souvent en périphérie des orages intenses, le long des fronts de rafales qui marquent la partie avant des courants de densité produits par les courants descendants. 3, record 2, French, - tornade%20de%20front%20de%20rafales
Record number: 2, Textual support number: 5 OBS
«gustnado» : On la considère comme un «type de tornade» mais elle n'a pas les caractéristiques habituelles de la tornade. C'est un tourbillon intense et de courte durée qui se forme sur la bordure antérieure d'un fort front de rafales. On peut voir des nuages en lambeaux et des débris ou de la poussière, mais rarement d'entonnoir de condensation. La «gustnado» dure de quelques secondes à une minute et peut causer des dégâts mineurs. Elle se distingue de la vraie tornade par sa place au-dessous d'un banc de nuages sombres qui approche, à l'avant du noyau de pluie. Même si l'air est en rotation, la situation porte à classer ce phénomène avec les vents rectilignes. 4, record 2, French, - tornade%20de%20front%20de%20rafales
Record 2, Spanish
Record 2, Textual support, Spanish
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