TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

MURO NUBES [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-09-22

English

Subject field(s)
  • Atmospheric Physics
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

... the rotating, localized lowering of the cloud base beneath the rain-free portion of a thunderstorm that often precedes tornado development ...

CONT

Wall clouds can range from a fraction of a mile up to nearly five miles in diameter, and normally are found on the south or southwest (inflow) side of the thunderstorm. Even though this cloud is lowering, it remains attached to the rain free cloud base of the thunderstorm. It is usually located south or southwest of the visible precipitation area, and marks the strongest updraft in the thunderstorm. The wall cloud develops as the strong updraft draws in surface moisture from several miles away.

OBS

"Wall cloud" also is used occasionally in tropical meteorology to describe the inner cloud wall surrounding the eye of a tropical cyclone, but the proper term for this feature is "eyewall."

French

Domaine(s)
  • Physique de l'atmosphère
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Le précurseur typique de la tornade est le mur de nuages. C'est une partie de la base du nuage qui semble s'abaisser vers le sol. On le trouve normalement sur le flanc arrière droit de l'orage. Autrement dit, si l'orage arrive de l'ouest, il faut regarder vers sa partie sud-ouest. Le mur de nuages se forme dans la zone sans précipitations et montre généralement un mouvement de rotation, sous la base du nuage.

Key term(s)
  • nuage mur

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Fenómenos meteorológicos, climáticos y atmosféricos
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Record 2 2017-05-11

English

Subject field(s)
  • Meteorology
DEF

The relatively clear and calm area inside the circular wall of convective clouds, the geometric centre of which is the centre of the tropical cyclone.

Key term(s)
  • tropical cyclone's eye

French

Domaine(s)
  • Météorologie
DEF

Zone plus ou moins dégagée et calme à l'intérieur du mur circulaire de nuages de convection, dont le centre géométrique est le centre du cyclone tropical.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Zona relativamente clara y tranquila dentro de un muro circular de nubes convectivas, cuyo centro geométrico es el centro del ciclón tropical.

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