Kelly Helm Smith^1,2, Andrew J Tyre³, Jeff Hamik⁴, Michael J Hayes³, Yuzhen Zhou⁵ and Li Dai⁵, (1)National Drought Mitigation Center, Lincoln, NE, United States, (2)University of Nebraska Lincoln, School of Natural Resources, Lincoln, NE, United States, (3)University of Nebraska-Lincoln, School of Natural Resources, Lincoln, NE, United States, (4)University of Nebraska-Lincoln | Nebraska Department of Health and Human Services, Division of Public health – Epidemiology and informatics unit, Lincoln, NE, United States, (5)University of Nebraska Lincoln, Department of Statistics, Lincoln, United States