棚たな雲ぐもたなぐもMeanings1nounshelf cloudmeteorologyMeteorological 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.