south - literally, “chambers”; connected with the south (Job 9:9). The whirlwinds are poetically regarded as pent up by God in His southern chambers, whence He sends them forth (so Job 38:22; Psa 135:7). As to the southern whirlwinds (see Isa 21:1; Zec 9:14), they drive before them burning sands; chiefly from February to May.
the north - literally, “scattering”; the north wind scatters the clouds.