What does it mean that the storm is coming? How do you understand the meaning of the coming storm?

1, "The rain is coming and the wind is blowing all over the building" means that there was a strong wind before the rainstorm, and now it is often used to describe the tense atmosphere before the war or conflict. 2. The whole poem is "Clouds begin to sink in the morning and rain comes." From the third year of Emperor Xuanzong of the Tang Dynasty, the poet traveled to the East Building of Xianyang City by Gu Lou.