What was the harshest aspect of the terrain in the northern plains

Hello fellow questioner I have the answer to your question indeed! The Dust Bowl.  Please add me as brainliest. ^^

Explanation:

Farmers across the Great Plains longed for rain during the spring of 1934. But day after day, the weather offered no relief, only intense sun, wind, drought, more sun, then gale-force winds. On April 14, massive clouds of dust blotted out the sun over western Kansas. At first the wind raced along the surface, tearing at the stunted wheat and licking up the topsoil. Then the dust thickened into low, heavy, dirt-laden clouds. From a distance, the storm had the appearance of a cumulus cloud, but it was black, not white; and it seemed to eat its way along with a rolling, churning motion. As the storm swept toward Oklahoma and Texas, the black clouds engulfed the landscape. For those at the storm center there was an eerie sensation of silence and darkness. There was little or no visibility, and wind velocity hit 40 to 50 miles per hour. The next month was exceedingly hot with a temperature above 100 degrees Fahrenheit every day. On May 10, the gales returned, this time from the west. Unlike the previous storm, these winds whipped up a formless, light-brown fog that spread over an area 900 miles wide and 1500 miles long. The next day an estimated 12 million tons of soil fell on Chicago, Illinois, and dust darkened the skies over Cleveland, Ohio. On May 12, dust hung like a shadow over the entire eastern seaboard. By the time they were over, these two storms alone blew 650 million tons of topsoil off the Great Plains.

The Dust Bowl covered 300,000 square miles of territory located in Kansas, Texas, western Oklahoma, eastern Colorado, and New Mexico. In the hardest-hit areas, agriculture virtually ceased. With successive storms, the wind and the flying dust cut off wheat stalks at ground level and tore out the roots. Blowing dirt shifted from one field to another, burying crops not yet carried away from the wind. Cattle tried to eat the dust-laden grass and filled their stomachs with fatal "mud balls." The dust banked against houses and farm buildings like snow, and buried fences up to the post tops. Dirt penetrated into automobile engines and clogged the vital parts. Housewives fought vainly to keep it out of their homes, but it seeped in through cracks and crevices, through wet blankets hung over windows, through oiled cloths and tape, covering everything with grit. Hospitals reported hundreds of patients suffering from "dust pneumonia." The black blizzards struck so suddenly that many farmers became lost in their own fields and suffocated, some literally within yards of shelter. More than 350,000 people fled the Great Plains during the 1930s. These "Okies" loaded their meager household goods and struck out along famous highway Route 66 for California.

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