what caused the dust storms?
Answer by Nightrideproductions. Confidence votes 483. A dust storm is usually caused by the top layer of earth becoming very dry over time, usually from a drought. When the wind becomes heavy enough, it will pick up only the smallest particles of dirt, which resembles dust, and will carry them through the air.
Dust storms are caused by a number of factors:   Prolonged drought-lack of rain to settle the soil, and to promote plant growth, which in turn helps keep the soil in plac â¦ e.  Deforestation, leaving the ground open and exposed.  Excessive heat and weather conditions, which can lead to the raising up of high winds.