Answer:
The color purple symbolizes the dark clouds ahead/on it's way.
Step-by-step explanation:
Comparing this to both real life and the text of the story, you can tell it's indicating stormy clouds.
Answer:
The author contrasts purple and white as to point out how beautiful white snow falls from dark, stormy clouds(?) This contrast symbolizes how fall is coming to an end, and winter is on it's way/already there.
Step-by-step explanation:
The way the passage describes the two, along with the sentence that follows helps support this.
Hope this helped! <3