ELBERT COUNTY, CO - MAY 8: Traveling in a tornado scouting vehicle, Tim Marshall, a 40 year veteran of storm chasing, monitors a storm via radar on his smartphone during a tornado research mission, May 8, 2017 in Elbert County near Agate, Colorado. With funding from the National Science Foundation and other government grants, scientists and meteorologists from the Center for Severe Weather Research try to get close to supercell storms and tornadoes trying to better understand tornado structure and strength, how low-level winds affect and damage buildings, and to learn more about tornado formation and prediction. (Photo by Drew Angerer/Getty Images)
