cumulo-stratus

The sky was blue all around the horizon, but overhead a cumulo-stratus grew early; it seemed to be drifting to the south and later to the east.

Scott's Last Expedition Volume I Robert Falcon Scott 1890

We started in bright warm sunshine and with the mountains wonderfully clear on our right hand, but towards the end of the march clouds worked up from the east and a thin broken cumulo-stratus now overspreads the sky, leaving the land still visible but dull.

Scott's Last Expedition Volume I Robert Falcon Scott 1890

Shortly after we started mist formed about us, waxing and waning in density; a slight southerly breeze sprang up, cumulo-stratus cloud formed overhead with a rather windy appearance (radial E. and W.).

Scott's Last Expedition Volume I Robert Falcon Scott 1890

Certain of the included species mimic terrestrial cloud-scenery -- now appearing like fleecy cirrus transpenetrated with the red glow of sunset -- now like prodigious masses of cumulo-stratus hanging heavily above the horizon.

A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874

6 A. M., a line of small cumulo-stratus, extending east and west, with a clear horizon north and south 10° high.

Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence T. Bassnett