U.S. Air Force Col. Donald Shannon, 2nd Weather Group commander, speaks to weather professionals during a memorial ceremony in honor of U.S. Air Force Capt. Nathan Nylander at the 557th Weather Wing auditorium, Offutt Air Force Base, Neb., April 27, 2016. Nyalnder was killed at Kabul International Airport on April 27, 2011. (U.S. Air Force photo by Josh Plueger)