Abstract: A system for real-time tracking and display of movement of an airborne hazardous agent includes one or more mobile units each having a wind parameter measuring apparatus that provides real-time wind direction and speed, a navigation system that provides a mobile unit heading and real-time position of the mobile unit, and a radio transmitter; a computer system having an input for receiving the wind parameters and the mobile unit heading and the mobile unit position, a processor and a memory and that is configured with control logic to enable the computer system to obtain the wind parameters, mobile unit heading, mobile unit position, determine a wind heading and generate an image having a geographic point corresponding to position where the hazardous agent was released, a graphical indication of possible movement over time, and a graphical indication of predicted movement over time based upon the wind parameters; and a display for displaying the image.