![]() ![]() The wavy strips of clouds are generally near an inversion surface.Īlso referred to as billow clouds, wind row clouds, or wave clouds, variations of the undulatus can be elements that have merged or single elements that have stretched through the sky. From the Latin stratus, past participle of the verb sternere, which means to extend, to spread out, to flatten out, to cover with a layer. These formations will generally appear in the early stages of destabilizing return flows, especially over the southern plains of the United States, when the surface temperature is still relatively cool. From the Latin nimbus, which means rainy cloud, and stratus. Fluctus: Crested wave-like stratocumulus, altocumulus, or cirrus cloud. Virga appear with most species of Altocumulus. These undulations may be visible (usually as "wavy bases"), but frequently they are indiscernible to the naked eye. Small cumulus are commonly grouped with the low clouds because they do not show. Supplementary features and accessory clouds. (a)Study of the origin of tropical cyclones (b)Origin and evolution of the tornadoes (c)New underwater species having bioluminescence (d)Study of cloud. The ominous-looking clouds have been particularly common in the Plains states of the United States, often during the morning or midday hours following convective. Asperitas clouds photographed from a 12th floor office building in downtown Cedar Rapids, Iowa. A mackerel sky is a common term for clouds made up of rows of cirrocumulus or altocumulus clouds displaying an undulating, rippling pattern similar in appearance to fish scales 1 2 this is caused by high altitude atmospheric waves. 3 Although they appear dark and storm-like, they almost always dissipate without a storm forming. No, but may signify approaching precipitation. The altostratus undulatus is a type of altostratus cloud with signature undulations within it. The clouds are closely related to undulatus clouds. ![]()
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