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Fiche 1,  Justifications,  Anglais

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A cold frontal passage occurs when cold air moves forward, usually toward the south, southeast, or east, into warmer air, forcing the warm air to rise up the steep, sloping surface of the cold air mass.  3, fiche 1, Anglais, - cold%20frontal%20passage

Fiche 1,  Justifications,  Français

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Une chute de température est souvent le signe du passage d'un front froid.  2, fiche 1, Français, - passage%20d%27un%20front%20froid

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

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Any cyclone associated with a front.  2, fiche 2, Anglais, - frontal%20cyclone

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In winter, Canada is often under the influence of large cold anticyclones, with frontal cyclones to the south. The passage of intense frontal cyclones, however, causes the mean wind speeds to be high.  3, fiche 2, Anglais, - frontal%20cyclone

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It is often associated with extratropical cyclone (as opposed to tropical cyclone, which is non-frontal).  2, fiche 2, Anglais, - frontal%20cyclone

Fiche 2,  Justifications,  Français

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Tout cyclone associé à un front.  2, fiche 2, Français, - cyclone%20frontal

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Ce terme est souvent associé à celui de «cyclone extratropical» (par opposition à un cyclone tropical, qui n'est pas frontal).  2, fiche 2, Français, - cyclone%20frontal

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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... a swift-moving cold frontal passage in the southern Great Plains [of North America], marked by a dark, blue-black sky with strong wintery winds from the northwest or north and temperatures that may drop 20°F to 30°F in a few minutes.  2, fiche 3, Anglais, - blue%20norther

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The term "blue norther" is most commonly associated with Texas. Various other names for the same phenomenon exist over the central and southern Plains [California norther, etc.]. There are also various theories as to the exact origin of the term. In general it is associated with a rapidly moving cold front (usually in the Autumn) that causes temperatures to drop quickly and that often brings with it precipitation and unsettled weather, followed by a period of blue skies and cold temperatures.  3, fiche 3, Anglais, - blue%20norther

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Some authors consider "blue norther" as a synonym of "Texas norther", others consider it as a related term. Compare to "Texas norther".  4, fiche 3, Anglais, - blue%20norther

Fiche 3,  Justifications,  Français

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Vent fort et froid, venant du nord, dans diverses parties de l'hémisphère Nord.  1, fiche 3, Français, - norther

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Le Grand dictionnaire encyclopédique Larousse répertorie «northern» au lieu de «norther». Norther figure dans les dictionnaires spécialisés de météorologie.  3, fiche 3, Français, - norther

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northern : Phénomène relevé en Amérique du Nord (centre et sud-est des États-Unis et occasionnellement golfe du Mexique), qui correspond à l'arrivée d'air polaire continental aux latitudes subtropicales, voire intertropicales.  2, fiche 3, Français, - norther

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Il ne semble pas y avoir de correspondance française pour le terme «blue norther». Aussi, le terme générique «norther» semble être le meilleur équivalent. Cependant, René Héroux, météorologue à Environnement Canada, suggère d'utiliser le terme anglais avec une note explicative sur la provenance de ce terme.  3, fiche 3, Français, - norther

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

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After a cold front passes Mayport and becomes stationary across Florida or over the Gulf of Mexico, a warm front potential is present. If the warm front passage occurs during the daytime, cumulus clouds with scattered shower activity and cirrus clouds are observed in the warm sector. If frontal passage is during the night, low stratus overcast usually follows the front. Stations west and southwest of Mayport will realize first indications of this synoptic development.  2, fiche 4, Anglais, - synoptic%20development

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol