TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
SHALLOW FOG [6 records]
Record 1 - internal organization data 2023-01-31
Record 1, English
Record 1, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
- Atmospheric Physics
Record 1, Main entry term, English
- shallow fog
1, record 1, English, shallow%20fog
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- ground fog 2, record 1, English, ground%20fog
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[A] low-lying fog that does not obstruct horizontal visibility at a level 2 m (6 ft) or more above the surface of the earth. 3, record 1, English, - shallow%20fog
Record number: 1, Textual support number: 1 CONT
Radiation fog is known as "shallow fog" or "ground fog" when it occurs in a shallow enough layer that it does not restrict horizontal visibility when viewed from a height of about 2 m on land or 10 m at sea. 2, record 1, English, - shallow%20fog
Record number: 1, Textual support number: 1 OBS
Shallow fog is almost always a form of radiation fog. 3, record 1, English, - shallow%20fog
Record 1, French
Record 1, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
- Physique de l'atmosphère
Record 1, Main entry term, French
- brouillard mince
1, record 1, French, brouillard%20mince
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- brouillard au sol 2, record 1, French, brouillard%20au%20sol
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le brouillard de rayonnement est également appelé «brouillard mince» ou «brouillard au sol» lorsque son épaisseur est telle qu'elle ne limite pas la visibilité horizontale d'un observateur situé à une hauteur de deux mètres sur terre ou de dix mètres en mer. 2, record 1, French, - brouillard%20mince
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2017-06-14
Record 2, English
Record 2, Subject field(s)
- Aircraft Piloting and Navigation
Record 2, Main entry term, English
- approach descent
1, record 2, English, approach%20descent
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Operating into a shallow ground fog can prove quite dangerous because the approach and runway lighting systems, which are visible through the fog as the approach descent is conducted, shorten rapidly or disappear entirely when the aircraft approaches and enters the top of the fog layer. 1, record 2, English, - approach%20descent
Record 2, French
Record 2, Domaine(s)
- Pilotage et navigation aérienne
Record 2, Main entry term, French
- descente en approche
1, record 2, French, descente%20en%20approche
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La manœuvre dans un brouillard mince au sol risque de devenir très dangereuse du fait que les dispositifs lumineux d'approche et de piste, qui sont visibles à travers le brouillard lors de la descente en approche, diminuent rapidement de longueur ou disparaissent entièrement lorsque l'avion se rapproche de la partie supérieure de la couche de brouillard et y pénètre. 1, record 2, French, - descente%20en%20approche
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2012-07-13
Record 3, English
Record 3, Subject field(s)
- Air Traffic Control
- Radiotelephony
- Atmospheric Physics
Record 3, Main entry term, English
- CAVOK
1, record 3, English, CAVOK
correct, standardized
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A term ... that may be used in air-ground communication when meteorological information is being transmitted to aircraft. 1, record 3, English, - CAVOK
Record number: 3, Textual support number: 1 OBS
CAVOK refers to the simultaneous occurrence, at an airport, of the following meteorological conditions :(a) no cloud below 5000 ft, or below the highest minimum sector altitude(MSA), whichever is higher, and no cumulonimbus;(b) a visibility of 6 SM [statute miles] or more; and(c) no precipitation, thunderstorm, shallow fog or drifting snow. 1, record 3, English, - CAVOK
Record number: 3, Textual support number: 2 OBS
CAVOK: This term is pronounced "KAV-OH-KAY" and is derived from the words "ceiling and visibility OK." 2, record 3, English, - CAVOK
Record number: 3, Textual support number: 3 OBS
CAVOK: term standardized by the Glossary for Pilots and Air Traffic Services Personnel Committee. 2, record 3, English, - CAVOK
Record 3, French
Record 3, Domaine(s)
- Circulation et trafic aériens
- Radiotéléphonie
- Physique de l'atmosphère
Record 3, Main entry term, French
- CAVOK
1, record 3, French, CAVOK
correct, masculine noun, standardized
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Terme [...] pouvant être utilisé dans les communications air-sol lors de la transmission de renseignements météorologiques aux aéronefs. 1, record 3, French, - CAVOK
Record number: 3, Textual support number: 1 OBS
CAVOK indique la présence simultanée, à un aéroport, des conditions météorologiques suivantes : a) aucun nuage au-dessous de 5000 [pieds] ou au-dessous de la plus haute altitude minimale de secteur (MSA), selon la plus élevée des deux, et aucun cumulonimbus; b) visibilité de 6 SM [milles terrestres] ou plus; c) absence de précipitation, d'orage électrique, de brouillard au sol ou de chasse-neige basse. 1, record 3, French, - CAVOK
Record number: 3, Textual support number: 2 OBS
CAVOK : Ce terme est prononcé «KAV-O-KÉ» et est dérivé de l'expression «ceiling and visibility OK» («plafond et visibilité OK»). 2, record 3, French, - CAVOK
Record number: 3, Textual support number: 3 OBS
CAVOK : terme normalisé par le Comité sur le Glossaire à l'intention des pilotes et du personnel des services de la circulation aérienne. 2, record 3, French, - CAVOK
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2007-06-20
Record 4, English
Record 4, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 4, Main entry term, English
- fog bank
1, record 4, English, fog%20bank
correct, see observation
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Fog, generally caused by local conditions, which extends over a small area some hundreds of metres across. 2, record 4, English, - fog%20bank
Record number: 4, Textual support number: 1 CONT
Fog banks becoming fog patches today. 3, record 4, English, - fog%20bank
Record number: 4, Textual support number: 1 OBS
Fog bank [is,] generally, a fairly well-defined mass of fog observed in the distance, most commonly at sea, [over a lake, or along coastal areas]. 4, record 4, English, - fog%20bank
Record number: 4, Textual support number: 2 OBS
This does not apply to patches of shallow ground fog which usually occur over land at night or early in the morning. 5, record 4, English, - fog%20bank
Record number: 4, Textual support number: 3 OBS
In the jargon of bush pilots, the term "clag" is used to describe patchy fog, cloud, or drizzle in generally calm conditions. 6, record 4, English, - fog%20bank
Record number: 4, Textual support number: 1 PHR
Disappear behind, drive into, encounter, enter, flying directly towards, report, run into, turn back towards a fog bank. 7, record 4, English, - fog%20bank
Record 4, Key term(s)
- fogbank
Record 4, French
Record 4, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 4, Main entry term, French
- banc de brouillard
1, record 4, French, banc%20de%20brouillard
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Brouillard, généralement dû aux conditions locales, qui s'étend sur une faible superficie d'une largeur de quelques centaines de mètres. 2, record 4, French, - banc%20de%20brouillard
Record number: 4, Textual support number: 1 CONT
[Le] banc de brouillard [est un] brouillard d'une étendue locale bien délimitée que l'on peut observer à distance, la plupart du temps en mer. 3, record 4, French, - banc%20de%20brouillard
Record number: 4, Textual support number: 1 OBS
II ne faut pas confondre les bancs de brouillard avec les nappes de brouillard au sol qui se forment à l'intérieur des terres pendant la nuit ou aux petites heures du matin. 3, record 4, French, - banc%20de%20brouillard
Record number: 4, Textual support number: 1 PHR
Arriver dans un, entrer dans un, rencontrer un, sortir du banc de brouillard. 4, record 4, French, - banc%20de%20brouillard
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 4, Main entry term, Spanish
- banco de niebla
1, record 4, Spanish, banco%20de%20niebla
correct, masculine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 DEF
Niebla, generalmente de origen local, que cubre una zona pequeña de unos cientos de metros de anchura. 2, record 4, Spanish, - banco%20de%20niebla
Record 5 - internal organization data 2001-08-13
Record 5, English
Record 5, Subject field(s)
- Pricing (Air Transport)
- Operations (Air Forces)
Record 5, Main entry term, English
- cloud and visibility OK
1, record 5, English, cloud%20and%20visibility%20OK
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
An abbreviation indicating the simultaneous occurrence of the following meteorological conditions : a. no cloud below 5, 000 feet, or below the highest minimum sector altitude, whichever is higher, and no cumulonimbus; b. a visibility of 6 statute miles or more; and c. no precipitation, thunderstorms, shallow fog, or low drifting snow. 1, record 5, English, - cloud%20and%20visibility%20OK
Record 5, Key term(s)
- clouds and visibility OK
Record 5, French
Record 5, Domaine(s)
- Tarification (Transport aérien)
- Opérations (Forces aériennes)
Record 5, Main entry term, French
- plafond et visibilité OK
1, record 5, French, plafond%20et%20visibilit%C3%A9%20OK
correct
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record 5, Key term(s)
- nuages et visibilité : parfait
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1987-03-10
Record 6, English
Record 6, Subject field(s)
- Meteorology
- Airfields
Record 6, Main entry term, English
- shallow ground fog
1, record 6, English, shallow%20ground%20fog
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, French
Record 6, Domaine(s)
- Météorologie
- Aérodromes
Record 6, Main entry term, French
- brouillard mince au sol
1, record 6, French, brouillard%20mince%20au%20sol
masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record 6, Spanish
Record 6, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: