4 sentences

1. 气象局发布了暴雨黄色预警。

   qì​xiàng​jú fā​bù le bào​yǔ huáng​sè yù​jǐng.

   The meteorological bureau issued a yellow warning for rainstorms.

   Source: Dong Chinese Dictionary

2. 他们毫无预警。

   tā​men háo wú yù​jǐng.

   They had no warning.

   Source: OpenSubtitles

3. 气象台发布了暴雨黄色预警。

   qì​xiàng​tái fā​bù le bào​yǔ huáng​sè yù​jǐng.

   The weather station issued a yellow alert for rainstorms.

   Source: Dong Chinese Dictionary

4. 气象台发布了台风橙色预警。

   qì​xiàng​tái fā​bù le tái​fēng chéng​sè yù​jǐng.

   The meteorological station issued a typhoon orange alert.

   Source: Dong Chinese Dictionary