thunderclouds festooned the usually mild forehead of Mr. Pottle next morning.
She looked at David's eyes, the color of the thunderclouds outside.
And the modern world of moods is a world of clouds, even if some of them are thunderclouds.
Goil had thunderclouds ready to burst hanging around his head.
The thunderclouds had gathered in the blackest masses above the Frauenthor and the Ortlieb mansion.
They were like thunderclouds charged with blasting lightnings.
Mr. Cardew looked at her steadfastly, scrutinisingly, but her eyes were on the thunderclouds, and the lily fell faster and faster.
Besides, the atmosphere was sultry, and the scorching sun struggled with the thunderclouds gathering in heavy masses at the north.
At the same time, wherever he arrives the thunderclouds gather.
A bank of thunderclouds lowered heavily above the mountain, and the close, dusty streets were silent, and nearly deserted.
Plural cumulonimbi (kym'yə-lō-nĭm'bī)
An extremely dense, vertically developed cloud with a low, dark base and fluffy masses that tower to great heights. Cumulonimbus clouds usually produce heavy rains, thunderstorms, or hailstorms. Also called thundercloud. See illustration at cloud.