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Mamma - (also called mammatus) Hanging protuberances, like pouches, on the undersurface of a cloud. This supplementary cloud feature occurs mostly with cirrus, cirrocumulus, altocumulus, altostratus, stratocumulus, and cumulonimbus; in the case of cumulonimbus, mamma generally appear on the underside of the anvil (incus).
Praecipitatio - A cloud supplementary feature for precipitation falling from a cloud and apparently reaching the earth's surface.
Bron: weather-photos.net
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