暖气团

dāng nuǎn qì tuán zài fēng miàn chù shòu dào lěng qì tuán de zuò yòng shí jiù huì xíng chéng léi bào yǔ

当暖气团在锋面处受到冷气团的作用时，就会形成雷暴雨。

Thunderstorm form when a warm air mass is forced by a cold mass at a front.