The correct answer to this open question is the following.
No, the repeal of Prohibition did not cause severe dust storms in the Great Plains.
What happened in the Great Plains when severe drought followed the removal of native grasses was that strong winds blew away topsoil and created a Dust Bowl.
In the 1930s, the Great Plains lived difficult moments when severe dust storms hit this region of the United States. The dryness due to lack of water, the removal of native grasses, combined with climate conditions, produced these dust storms that killed animals and ruined the crops. There was no way to keep on farming the land and people had to move to the Pacific West, to California, where they had to start a new life.
