weird weather 天气很反常

We've had some really weird weather lately!

我们最近天气很反常！

pop-up storm 雷阵雨

In the summer, it seems like D.C. is hit by pop-up storm every day!

夏天的时候，华盛顿每天好像都有雷阵雨!

raining cats and dogs 瓢泼大雨

We got hit by a pop up storm yesterday! All of a sudden it started raining cats and dogs and I didn't have an umbrella!!

我们昨天赶上雷阵雨！突然开始瓢泼大雨！而我又没带雨伞！

storm clouds 乌云

roll in 飘过来

You know it's gonna rain when you see big storm clouds rolling in!

看着乌云飘过来，就知道快下雨了。