altocumulus cloud


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altocumulus cloud

[¦al·tō¦kyüm·yə·ləs ′klau̇d]
(meteorology)
A principal cloud type, white or gray or both white and gray in color; occurs as a layer or patch with a waved aspect, the elements of which appear as laminae, rounded masses, or rolls; frequently appears at different levels in a given sky. Abbreviated Ac.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Also known as a hole punch cloud, the fallstreak hole is a large gap, usually circular or elliptical, that can appear in cirrocumulus or altocumulus clouds.
He said the setting rays of the sun had been refracted by a range of altocumulus clouds some 9,000 feet up, giving the stunning colour display.
Mid-level altocumulus clouds can be banded or rounded in formation.
EVENING GLOW: Brian Hutchinson of Hartburn, Stockton, photographed this spectacular sky of altocumulus clouds in Hartburn, left; GO WITH THE FLOW: Young photographer, Laina Christie, aged ten, captured this peaceful stream and woodland near Osmotherley, below; NATURE: A Mistle Thrush in the snow, photographed by Brian Swales of Letch Lane, Stockton, on January 3, above.