Examples from the Web for thundercloud
For a moment, the gray plane recalled a thundercloud against the clear blue sky.
Lovely to him as the colours of the rainbow on the thundercloud gleamed the azure of his home.Darkness and Dawn|Frederic W. Farrar
The young woman was at her desk with a face like a thundercloud.Red Masquerade|Louis Joseph Vance
Also the first few drops that come from the thick, hot lips of the thundercloud are usually immense.Reading the Weather|Thomas Morris Longstreth