U.S. Air Force Col. Brian Pukall, 577th Weather Wing commander, and Lt. Col. Lance Ratterman, 15th Operational Weather Squad commander, listen to a guest speaker during the 15th OWS 20th anniversary dinner, Feb. 12, 2019, at Scott Air Force Base, Ill. During its 77 years, the 15th OWS has been located in six states and four countries across three different continents. It has spent the last 20 years assigned to Scott. (U.S. Air Force photo by Senior Airman Daniel Garcia)