TERMIUM Plus®

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

EYE WALL CLOUD [3 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
Save record 1

Record 2 2023-09-21

English

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

The ring of thunderstorms that surrounds a storm’s eye.

OBS

The heaviest rain, strongest winds and worst turbulence are found in the eyewall.

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. "

Key term(s)
  • eye wall cloud

French

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

Anneau d'orages qui encercle l'œil de la tempête.

OBS

C'est à cet endroit que se situent les pluies, les turbulences et les vents les plus forts.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Fenómenos meteorológicos, climáticos y atmosféricos
Save record 2

Record 3 2012-11-21

English

Subject field(s)
  • Atmospheric Physics
CONT

eyewall/wall cloud : An organized band or ring of cumulonimbus clouds that surround the eye, or light-wind center of a tropical cyclone.

French

Domaine(s)
  • Physique de l'atmosphère

Spanish

Save record 3

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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