ADJ-GRADED
要打雷的;将要有雷电的
When the weather is thundery, there is a lot of thunder, or there are heavy clouds which make you think that there will be thunder soon.
例句
Thundery weather is forecast...
天气预报说会有雷雨。
Heavy thundery rain fell throughout Thursday.
星期四下了一整天的雷暴雨。