Slow TRAVELLING SHOT in mapping department showing maps hanging on wall, men tracing maps at table. CU of hand tracing isobars on chart full of numbers. CU of hand tracing isobars, ZOOM OUT to include draftsman and co-worker. CU of face of draftsman. Over shoulder shot of man tracing isobars. Interior shot of drafting room. CS of draftsman to CU of man's hand on map. CU of map, man's hand pulling down forecast data, drawing. CU of face of man plotting weather data, TILT DOWN to his work. Shots of three men at work in plotting room. TILT DOWN to man working on drafting table. Various shots and CU of automatic isobar tracer in action. CU of hand pushing button to start automatic tracer in background. Oblique shot of tracer in action.