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A domed shape on a flat base, marking heaped fair-weather cloud.
Also known as: Heap cloud symbol, Fair weather cumulus
Cumulus is drawn as a rounded heap on a flat base. The flat base is where rising air reaches its condensation level, which is why every cumulus in a field sits at the same height on a given day.
Denotes cumulus: detached heaped cloud with a flat base and rising domed tops.
Contexts: Navigation, Maps
Has a flat base because the base marks the level at which rising air condenses, which is why cumulus bases across a landscape are level with one another.
Contexts: Navigation, Maps
A shape with a flat horizontal underside and a rounded domed upper outline.