Verses with the word whirlwinds in the Old Testament (2 verses):

Isaiah 21:1
The burden of the desert of the sea. As whirlwinds in the south pass through; so it cometh from the desert, from a terrible land.

Zechariah 9:14
And the LORD shall be seen over them, and his arrow shall go forth as the lightning: and the LORD God shall blow the trumpet, and shall go with whirlwinds of the south.