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- Altocumulus_mackerel_sky abstract "A mackerel sky or buttermilk sky describes a sky mostly covered by altocumulus clouds. It is rare with altocumulus and extremely rare in its cirrocumulus form. The occurrence of these clouds is an indicator of moisture and instability at intermediate levels (2400–6100 m, 8000-20,000 ft). Rainshowers or thunderstorms may occur should any lower cumulus clouds reach the layer of the altocumulus form.However, the most common reason for the occurrence of a mackerel sky is an old, disintegrating frontal system. The cloud was probably originally altostratus and has been broken up into altocumulus as the weather front disintegrates (usually as a result of encountering an area of high atmospheric pressure). Little, if any rain most often follows a mackerel sky. Another common place that it is found is in the warm sector of a depression preceding the cold front and associated showery weather, however usually here it is obscured by lower stratus clouds.Mackerel skies are spoken of in the popular bywords, "Mackerel in the sky, three days dry," "Mackerel sky, mackerel sky. Never long wet and never long dry," and the nautical weather rhyme, "Mare's tails and mackerel scales / Make tall ships carry low sails." The phrase mackerel sky is an old English folkname, coming from the species of mackerel familiar in British waters, as the clouds look similar to the markings of an adult Atlantic mackerel.".
- Altocumulus_mackerel_sky thumbnail Mackerelskylincolnshire.jpg?width=300.
- Altocumulus_mackerel_sky wikiPageID "2402652".
- Altocumulus_mackerel_sky wikiPageRevisionID "640029797".
- Altocumulus_mackerel_sky abbreviation "Ac".
- Altocumulus_mackerel_sky altitudeFt "8000".
- Altocumulus_mackerel_sky altitudeM "2400".
- Altocumulus_mackerel_sky appearance "Clumps and rolls of clouds that resemble mackerel scales altogether".
- Altocumulus_mackerel_sky genus "-cumulus".
- Altocumulus_mackerel_sky genus "Alto-".
- Altocumulus_mackerel_sky hasPhotoCollection Altocumulus_mackerel_sky.
- Altocumulus_mackerel_sky imageLocation "Mackerelskylincolnshire.jpg".
- Altocumulus_mackerel_sky imageName "Altocumulus mackerel sky".
- Altocumulus_mackerel_sky level "medium".
- Altocumulus_mackerel_sky name "Mackerel sky".
- Altocumulus_mackerel_sky precipitation "No, but may signify approaching precipitation.".
- Altocumulus_mackerel_sky symbol "CM_8.png".
- Altocumulus_mackerel_sky subject Category:Cumulus.
- Altocumulus_mackerel_sky type Cloud111439690.
- Altocumulus_mackerel_sky type NaturalPhenomenon111408559.
- Altocumulus_mackerel_sky type Phenomenon100034213.
- Altocumulus_mackerel_sky type PhysicalEntity100001930.
- Altocumulus_mackerel_sky type PhysicalPhenomenon111419404.
- Altocumulus_mackerel_sky type Process100029677.
- Altocumulus_mackerel_sky comment "A mackerel sky or buttermilk sky describes a sky mostly covered by altocumulus clouds. It is rare with altocumulus and extremely rare in its cirrocumulus form. The occurrence of these clouds is an indicator of moisture and instability at intermediate levels (2400–6100 m, 8000-20,000 ft).".
- Altocumulus_mackerel_sky label "Altocumulus mackerel sky".
- Altocumulus_mackerel_sky label "Ciel moutonné".
- Altocumulus_mackerel_sky sameAs Ciel_moutonné.
- Altocumulus_mackerel_sky sameAs m.079mcl.
- Altocumulus_mackerel_sky sameAs Q4581098.
- Altocumulus_mackerel_sky sameAs Q4581098.
- Altocumulus_mackerel_sky sameAs Altocumulus_mackerel_sky.
- Altocumulus_mackerel_sky wasDerivedFrom Altocumulus_mackerel_sky?oldid=640029797.
- Altocumulus_mackerel_sky depiction Mackerelskylincolnshire.jpg.
- Altocumulus_mackerel_sky isPrimaryTopicOf Altocumulus_mackerel_sky.