At that time shall it be said to this people and to Jerusalem, A dry wind of the high places in the wilderness toward the daughter of my people, not to fan, nor to cleanse,
Dry wind - the simoom, terrific and destructive, blowing from the southeast across the sandy deserts east of Palestine. Image of the invading Babylonian army (Hosea 13:15). Babylon in its turn shall be visited by a similar "destroying wind" (Jeremiah 51:1). Of the high places - i:e., that sweeps over the high places.
Daughter - i:e., the children of my people.
Not to fan - a very different wind from those ordinary winds employed for fanning the grain in the open air.