These clouds form typically as a thin whitish sheet covering a major portion of the sky. They may be very thin or form a definite sheet. They are responsible for forming halos around the sun and the moon. Cirrostratus clouds contain ice crystals or needles of ice. Some of the symbols for cirrostratus clouds on weather maps are and . The first symbol indicates that the amount of cirrostratus is not increasing, whereas the second symbol means that the sky is overcast with cirrostratus.

Aviation dictionary. 2014.

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  • Cirrostratus — Abréviation METAR Cs Symbole Classification Famille A (Étage supérieur) …   Wikipédia en Français

  • cirrostratus — [ sirostratys ] n. m. • 1830; de cirrus et stratus ♦ Nuage élevé, de la famille des cirrus, en voile blanchâtre presque translucide. ● cirrostratus nom masculin Nuage de la famille des cirrus formant un voile plus ou moins blanchâtre, qui dessine …   Encyclopédie Universelle

  • Cirrostratus — Cirrostrātus (lat.), federige Schichtwolke, zarte, ca. 9 km hohe Wolkenschleier …   Kleines Konversations-Lexikon

  • Cirrostratus —   [lateinisch] der, /...ti, Wolken.   …   Universal-Lexikon

  • cirrostratus — ► NOUN ▪ cloud forming a thin, uniform semi translucent layer at high altitude …   English terms dictionary

  • cirrostratus — [sir΄ō strāt′əs, sir΄ōstrat′əs] n. the type of thin, whitish cloud found at high altitudes and consisting of ice crystals: such clouds often produce halo phenomena: see CLOUD …   English World dictionary

  • Cirrostratus — Wolken: Klassifikation Gattungen Cirrus Ci Cirrocumulus Cc Cirrostratus Cs Altocumulus Ac Altostratus As Stratocumulus Sc Stratus St Cumulus Cu Nimbostratus …   Deutsch Wikipedia

  • cirrostratus — noun A principal high level cloud type appearing as a whitish veil, usually fibrous but sometimes smooth, which may totally cover the sky and which often produces halo phenomena, either partially or completely. Sometimes a banded aspect may… …   Wiktionary

  • cirrostratus — UK [ˌsɪrəʊˈstrɑːtəs] / US [ˌsɪroʊˈstreɪtəs] noun [countable/uncountable] Word forms cirrostratus : singular cirrostratus plural cirrostrati UK [ˌsɪrəʊˈstrɑːtaɪ] / US [ˌsɪroʊˈstreɪtaɪ] science a thin layer of cloud found very high in the sky …   English dictionary

  • cirrostratus — cirrostrative, adj. /sir oh stray teuhs, strat euhs/, n., pl. cirrostratus. a cloud of a class characterized by a composition of ice crystals and often by the production of halo phenomena and appearing as a whitish and usually somewhat fibrous… …   Universalium

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