John Gill Commentary Jeremiah 10:13

"when he uttereth his voice, there is a tumult of waters in the heavens, and he causeth the vapors to ascend from the ends of the earth; he maketh lightnings for the rain, and bringeth forth the wind out of his treasuries." — Jeremiah 10:13 (ASV)

When he utters his voice
Declares his will and pleasure, issues out his commands; or when he thunders, for thunder is his voice, (Job 37:2–5) (40:9).

there is a multitude of waters in the heavens;
they are covered with clouds, and these clouds full of water; which is brought about by the following means.

and he causes the vapours to ascend from the ends of the earth;
from the north and south, as Kimchi observes from the philosophers; or from all parts of the earth, the most distant, and particularly from the sea, the border of the earth, from which clouds arise, being exhaled by the sun; see (1 Kings 18:43 1 Kings 18:44).

He makes lightnings with rain;
which very often go together, and the one makes way for the other, (Job 28:26), though they are so opposite one to another.

and brings forth the wind out of his treasures;
the caverns of the earth, or his fists, in which he holds it, (Proverbs 30:4) and lets its loose at his pleasure; he has plenty of it in reserve; he is Lord over it; he sends it forth when he pleases, and it fulfils his will and his word.