A method of processing weather data in real-time for graphical display is disclosed. A plurality of subsets of weather data defining a detectable volume of a weather event affecting a geographic area are received over a period of time. Each of the subsets defines a volumetric portion of the weather event, and each subset is processed as it is received to create a plurality of components, each corresponding to a particular volumetric portion of the weather event. Each component is associated with a graphical representation of the affected geographic area as each component becomes available to create a then current three-dimensional model of the detectable volume of the weather event. A graphical representation of the then current three-dimensional model may be displayed during the associating step such that a viewer can observe the graphical representation changing a component at a time over the period of time. A system for processing weather data in real-time for graphical display is also disclosed.