Answer:
The heavy clouds hung low in the sky, casting a gray pall over the desolate landscape, while the mournful sound of the wind echoed through the empty streets, enveloping everything in a sense of melancholy.
Step-by-step explanation:
Heavy clouds hanging low, seems ominous
Gray is a dark color
Pall has multiple meanings, including "to lose strength or effectiveness," "to cause to become insipid," and "a feeling of gloom" or "something that covers or conceals, especially an overspreading element that produces an effect of gloom"
Desolate is lonely
Mournful is very depressing sounding
Enveloping is just like covering
Melancholy is kind of like sadness for no reason/aka depression