界かい雷らい

noun

frontal thunderstorm

A thunderstorm associated with a weather front, as opposed to a heat thunderstorm. Technical meteorological term.

• 寒かん冷れい前ぜん線せんの通つう過かに伴ともない、界かい雷らいが発はっ生せいしやすくなる。

  Frontal thunderstorms are likely to occur with the passage of a cold front.

• 界かい雷らいは熱ねつ雷らいよりも広こう範はん囲いで長ちょう時じ間かん続つづくことが多おおい。

  Frontal thunderstorms often last longer and cover a wider area than heat thunderstorms.