We'd seen the storm brewing when we were out in the boat.

我们乘船外出时看到了暴风雨正在酝酿之中。

《柯林斯英汉双解大词典》

I think there's a storm brewing up.

我看风暴即将来临。

youdao

A storm brewing?

酝酿中的泡沫？

youdao

In short, I looked up at the sky and saw the storm brewing.

CNN: Bad laws would hurt good drones

With a political storm brewing over school reform plans, the commissioner is keen to engage children in the debate.

BBC: Interview

This story is a sidebar to Another Storm Brewing For Vytorin.

FORBES: Efficacy Questions Still Dog Vytorin