Summary: Army Instructional film explaining the importance of meteorology in accurately laying guns or surface to surface missiles, such as Honest John, onto a target. A mobile army meteorology unit, based in trucks, takes atmospheric readings at ground level and through the use of hydrogen-filled balloons and radiosondes, tracked by radar. The information is passed to artillery units and to Nuclear, Biological and Chemical (NBC) protection units, which require weather information to calculate the likely spread of contamination.
