Unfortunately they ran into a snowstorm along the way.

他们不幸在途中遇上了暴风雪。

《牛津词典》

A snowstorm hit the West today, bringing with it frigid temperatures.

一场暴风雪今天袭击西部地区，带来了严寒低温。

《柯林斯英汉双解大词典》

youdao

They actually make sure that certain streets get ploughed and other streets do not get ploughed when there is a snowstorm.

VOA: special.2011.04.25

Some drivers have become trapped in their vehicles during a snowstorm.

VOA: special.2010.01.05

They sing about a snowstorm in a New England town.

VOA: special.2009.01.26

In February, I drove one on a 500-mile family trip, much of it in a snowstorm.

WSJ: Cars With a Higher Clearance

And what happens on nights like this last Monday, when there was a snowstorm forecast?

WSJ: 'Because God Says So'

Elsewhere in the city, two people were hit by a police car during a snowstorm.

BBC: UK weather: Travel disruption after fresh snow