May 22, 2015

These maps, adapted from the U.S. National Climate Assessment issued in May 2014, show historical and projected patterns in the number of consecutive dry days experienced in different parts of the Great Plains. The historical map (left) shows the average annual maximum number of consecutive dry days during 1971-2000. Darker shades of orange signify longer dry spells. During this 30-year period, the area with the longest dry spells generally stretched from western Nebraska southward through western Texas.

The projected maps show change...

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