Adam Clarke on Job 37:9

Out of the south cometh the whirlwind - See the note on Job 9:9. What is rendered south here, is there rendered chambers. Mr. Good translates here, the utmost zone. The Chaldee: - "From the supreme chamber the commotion shall come; and from the cataracts of Arcturus the cold." What the whirlwind, סופה suphah, is, we know not. It might have been a wind peculiar to that district; and it is very possible that it was a scorching wind, something like the simoom.