2 sentences

1. 大雾严重影响了高速公路的能见度。

   dà wù yán​zhòng yǐng​xiǎng le gāo​sù​gōng​lù de néng​jiàn​dù.

   Heavy fog has severely affected visibility on the highway.

   Source: Dong Chinese Dictionary

2. 今天的霾非常严重，能见度不到五十米。

   jīn​tiān de mái fēi​cháng yán​zhòng, néng​jiàn​dù bù dào wǔ​shí mǐ.

   The haze is very heavy today, with visibility less than fifty meters.

   Source: Dong Chinese Dictionary