黒くろ雲くも

noun

dark clouds; black clouds

Refers to thick, dark, often threatening clouds. Can be used literally for storm clouds or figuratively for an ominous atmosphere.

• 黒くろ雲くもが空そらを覆おおい、今いまにも雨あめが降ふり出だしそうだ。

  Dark clouds covered the sky, and it looked like rain could start at any moment.

• 不ふ況きょうの黒くろ雲くもが立たち込こめている。

  Dark clouds of recession are gathering.