Perlucidus (cloud variety)

Perlucidus is a cloud variety that generally appears in only two cloud types, with those cloud types being altocumulus and stratocumulus, this cloud variety is easily recognizable, with its appearance being small gaps showing up in one of the cloud types that it shows up in, which let higher clouds be seen[1] This cloud variety forms when shallow convection starts in a cloud layer that did not previously have perlucidus variety characteristics,[2] the gaps that make the sky visible in these clouds indicate regions where air is sinking,[3] this cloud variety may appear either as a translucent cloud or an opaque cloud

Perlucidus
Altocumulus perlucidus
Abbreviationpe
Genusstratocumulus, altocumulus
Varietyperlucidus
Altitude500-7,000 m
(2,000-23,000 ft)
AppearanceCloud cover with small gaps that make higher cloud types be visible
PrecipitationDepends on the cloud type this variety is appearing in

See also

Opacus (cloud variety)

Translucidus (cloud variety)

References


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