On the morning of the expedition, I awoke with a feeling of impending disaster.

远征出发的那天早上，我醒来就有一种大难临头的感觉。

《柯林斯英汉双解大词典》

Now, the rebels face impending disaster.

叛军即将面临灭顶之灾。

youdao

It wouldn't surprise me one bit if they created the impending disaster on purpose, so they could look like a hero.

可能他们自身就是这些迫在眉睫灾难的肇因，我对此不会有一丁点诧异，因此不能把他们誉之为英雄。

youdao

He missed the market top, too, going to cash in 1928 when he smelled impending disaster.

FORBES: How To Protect Your Retirement Assets From The Coming Crash

China had no free press to give warning of impending disaster, no opposition demanding action.

ECONOMIST: Happy anniversary?

Perhaps Britain at last has a stronger currency that is a sign of economic health, not impending disaster.

ECONOMIST: The mighty pound