火か災さい雲ぐも

noun

fire cloud; pyrocumulus cloud; flammagenitus

Rare meteorological term for a cloud formed by intense heat from a fire or volcanic activity. Often used in technical or scientific contexts.

See also: 火災積雲

• 山やま火か事じの上じょう空くうに巨きょ大だいな火か災さい雲ぐもが発はっ生せいした。

  A huge fire cloud formed above the wildfire.