棚たな雲ぐも

noun

shelf cloud

Meteorological term for a low, horizontal, wedge-shaped cloud formation often associated with thunderstorms.

• 棚たな雲ぐもが近ちかづくと、急きゅうに強つよい風かぜが吹ふき始はじめた。

  When the shelf cloud approached, a strong wind suddenly started blowing.