U.S. Air Force Staff Sgt. Adam Ybarra, 1st Operations Support Squadron weather forecaster, analyzes surface observations ahead of an oncoming low pressure system at Langley Air Force Base, Va., Feb. 6, 2015. To help ensure the safety of the base’s population, weather personnel prepare forecasts and issue up-to-date weather warnings during hazardous conditions. (U.S. Air Force photo by Airman 1st Class Areca T. Wilson/Released)