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ZERO VISIBILITY [6 records]
Record 1 - internal organization data 2023-01-31
Record 1, English
Record 1, Subject field(s)
- Meteorology
- Transportation
Record 1, Main entry term, English
- zero visibility
1, record 1, English, zero%20visibility
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- no visibility 2, record 1, English, no%20visibility
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
... the fog could cause zero visibility [on the highway] at times in portions of [the province]. 1, record 1, English, - zero%20visibility
Record 1, French
Record 1, Domaine(s)
- Météorologie
- Transports
Record 1, Main entry term, French
- visibilité nulle
1, record 1, French, visibilit%C3%A9%20nulle
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2022-06-16
Record 2, English
Record 2, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
- Atmospheric, Climatic and Meteorological Phenomena
- River and Sea Navigation
Record 2, Main entry term, English
- visibility-in-fog statement
1, record 2, English, visibility%2Din%2Dfog%20statement
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The visibility-in-fog statement is used to advise mariners that the presence of fog in the marine forecast implies obstruction to visibility that can range from near zero in thick fog to almost 1 nautical mile in patchy fog. 1, record 2, English, - visibility%2Din%2Dfog%20statement
Record 2, French
Record 2, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
- Phénomènes météorologiques, climatiques et atmosphériques
- Navigation fluviale et maritime
Record 2, Main entry term, French
- note au sujet de la visibilité en cas de brouillard
1, record 2, French, note%20au%20sujet%20de%20la%20visibilit%C3%A9%20en%20cas%20de%20brouillard
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Dans une prévision maritime, la note au sujet de la visibilité en cas de brouillard avertit les navigateurs qu’en raison de la présence de brouillard, la visibilité peut être réduite de presque nulle, en cas de brouillard épais, à près de 1 mille marin, en cas de nappes de brouillard. 1, record 2, French, - note%20au%20sujet%20de%20la%20visibilit%C3%A9%20en%20cas%20de%20brouillard
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2004-12-02
Record 3, English
Record 3, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 3, Main entry term, English
- whiteout
1, record 3, English, whiteout
correct, noun
Record 3, Abbreviations, English
Record 3, Synonyms, English
- white-out 2, record 3, English, white%2Dout
correct, noun
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A weather condition caused by fog, heavy snowfall or a ground blizzard of blowing snow, which causes zero visibility. 3, record 3, English, - whiteout
Record number: 3, Textual support number: 1 CONT
Whiteouts can occur rapidly often blinding motorists and creating chain-reaction crashes involving multiple vehicles. Whiteouts are most frequent during blizzards. 4, record 3, English, - whiteout
Record number: 3, Textual support number: 1 OBS
This [weather condition] can create disorientation and even vertigo, especially if no trail or trail markers are visible. 3, record 3, English, - whiteout
Record number: 3, Textual support number: 2 OBS
There are two different forms of a whiteout: 1. In blizzard conditions, the windblown snow in the air may simply make it too difficult to see very far. 2. In clear air conditions, when there is no snow falling, diffuse lighting from overcast cloud may cause all surface definition to disappear. 5, record 3, English, - whiteout
Record 3, Key term(s)
- white out
Record 3, French
Record 3, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 3, Main entry term, French
- voile blanc
1, record 3, French, voile%20blanc
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- blanc dehors 2, record 3, French, blanc%20dehors
correct, see observation, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Le voile blanc est un phénomène en rapport avec la neige qui peut être extrêmement dangereux. Il existe deux types de voile blanc : celui causé par la poudrerie et l'autre causé par un manque de contraste et de texture. Les deux types de voile blanc peuvent désorienter les pilotes. 1, record 3, French, - voile%20blanc
Record number: 3, Textual support number: 1 OBS
Aujourd'hui, le terme «blanc dehors» sert souvent à décrire un blizzard ou une bourrasque de neige quand une poudrerie élevée réduit la visibilité à quelques mètres. Mais il ne s'agit pas d'un vrai blanc dehors lequel survient surtout dans l'Arctique et dans l'Antarctique où une couverture ininterrompue de neige et un ciel uniformément couvert se combinent pour créer une lueur blanche continue. Dans un blanc dehors, on ne voit ni ombre, ni horizon, et on perd tout sens des distances et de l'orientation. 2, record 3, French, - voile%20blanc
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2000-03-21
Record 4, English
Record 4, Subject field(s)
- Meteorological Forecasting, Data Measurement and Analysis
Record 4, Main entry term, English
- snow squall warning
1, record 4, English, snow%20squall%20warning
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Environment Canada issues winter weather warnings only when severe weather is expected to occur... A snow squall warning [is issued] When, to the lee of the Great Lakes or other large lakes, 15 cm or more of snow is likely to fall within 12 hours; or when under snow squall conditions, the visibility is likely to be near zero for four hours or more, even without warning level accumulations of snow. 1, record 4, English, - snow%20squall%20warning
Record 4, French
Record 4, Domaine(s)
- Prévisions météorologiques et mesure et analyse des données
Record 4, Main entry term, French
- avertissement de bourrasques de neige
1, record 4, French, avertissement%20de%20bourrasques%20de%20neige
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Environnement Canada n'émet d'avertissement météo hivernal que lorsque des phénomènes météorologiques violents sont prévus [..] [Un] avertissement de bourrasques de neige [est émis] Quand il est probable que, du côté sous le vent des Grands Lacs ou d'autres lacs de grande dimension, il y aura des chutes de neige de 15 cm ou plus en moins de 12 heures; ou quand il y a des bourrasques de neige et qu'il est probable que la visibilité sera quasi nulle durant quatre heures ou plus, mais que l'accumulation de neige sera insuffisante pour donner lieu à un avertissement. 1, record 4, French, - avertissement%20de%20bourrasques%20de%20neige
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1991-11-04
Record 5, English
Record 5, Subject field(s)
- Atmospheric Physics
- Meteorological Forecasting, Data Measurement and Analysis
Record 5, Main entry term, English
- heavy fog
1, record 5, English, heavy%20fog
correct, see observation
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 OBS
Visibility : from point zero to a quarter of a mile according to the Transportation Safety Board of Canada. 2, record 5, English, - heavy%20fog
Record number: 5, Textual support number: 2 OBS
From a quarter of a mile to half a mile : light fog; from half a mile to one mile : thin fog. 1, record 5, English, - heavy%20fog
Record 5, French
Record 5, Domaine(s)
- Physique de l'atmosphère
- Prévisions météorologiques et mesure et analyse des données
Record 5, Main entry term, French
- brouillard dense
1, record 5, French, brouillard%20dense
correct, see observation, masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- brouillard épais 1, record 5, French, brouillard%20%C3%A9pais
correct, see observation, masculine noun
- épais brouillard 1, record 5, French, %C3%A9pais%20brouillard
correct, see observation, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 OBS
Visibilité : du point zéro à un quart de mille selon le Bureau de la sécurité des transports du Canada. 1, record 5, French, - brouillard%20dense
Record number: 5, Textual support number: 2 OBS
En météorologie, on parle de "brouillard" lorsque la visibilité est réduite à moins de 1 km, et de "brume" lorsqu'elle est inférieure à 2 km mais supérieure à 1 km. (De la source "c"). 1, record 5, French, - brouillard%20dense
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1981-11-23
Record 6, English
Record 6, Subject field(s)
- Aeroindustry
Record 6, Main entry term, English
- zero ceiling
1, record 6, English, zero%20ceiling
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 CONT
An additional FAA contract involves production of Wilcox's new Category III ILS, the first production in the US of these advanced systems which allow for landings with zero ceiling and runway visibility as low as 200 m(700 feet). 1, record 6, English, - zero%20ceiling
Record 6, French
Record 6, Domaine(s)
- Constructions aéronautiques
Record 6, Main entry term, French
- plafond nul
1, record 6, French, plafond%20nul
masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Un contrat complémentaire porte sur une première fabrication en série aux États-Unis du nouvel ILS de Catégorie III de Wilcox. Ce système très élaboré, qui permet l'atterrissage par plafond nul et une visibilité de piste de 200 m, est de quatrième génération, [...] 1, record 6, French, - plafond%20nul
Record 6, Spanish
Record 6, Textual support, Spanish
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