The prospect is more unlikely due to improved irrigation methods and Crop rotation which would keep the top soil from being eroded to the point that it would simply blow away as it did during the dust bowl.
The farming practices have changed and progressed which has changed the soil. Since farmers no longer overgraze and over plowed farm lands in the Midwest the soil is different than it was during that drought period.

True the temperatures can raise to the same levels that they saw during that time and the weather seems to run in cycles, we are not in the same physical shape in the nation. The dust bowl taught farmers to make the changes that protect the top soil and hopefully stop the event from reoccurring.
Source(s):
http://www.accuweather.com/promotion.asp?dir=aw&page=dustbowl

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