4 sentences

1. 一股强冷空气即将由北向南来袭。

   yī gǔ qiáng lěng kōng​qì jí​jiāng yóu běi xiàng nán lái​xí.

   A strong cold air mass is about to sweep from north to south.

   Source: Dong Chinese Dictionary

2. 台风即将来袭，请大家做好防灾准备。

   tái​fēng jí​jiāng lái​xí, qǐng dà​jiā zuò​hǎo fáng​zāi zhǔn​bèi.

   A typhoon is approaching; please make preparations for the disaster.

   Source: Dong Chinese Dictionary

3. 风暴来袭前，经验丰富的水手迅速降下了风帆。

   fēng​bào lái​xí qián, jīng​yàn fēng​fù de shuǐ​shǒu xùn​sù jiàng​xià le fēng​fān.

   Before the storm hit, the experienced sailors quickly lowered the sails.

   Source: Dong Chinese Dictionary

4. 雷达监测到有敌机向我方阵地来袭。

   léi​dá jiān​cè dào yǒu dí​jī xiàng wǒ​fāng zhèn​dì lái​xí.

   Radar has detected enemy aircraft attacking our positions.

   Source: Dong Chinese Dictionary