A method of presenting weather data, representing weather events, on a graphical user interface (GUI). The weather data is received. At least one of the weather events is present in at least one of several altitude zones for a physical area centered on a reference point. A corresponding intensity rank is assigned to each of the weather events. Each of the altitude zones is divided into a corresponding grid defined for the physical area. Each corresponding grid has corresponding sectors defined by corresponding lines and vertices. A corresponding highest intensity ranking weather event extant in the corresponding sectors is assigned to each of the corresponding sectors in the altitude zones. A selection of a selected altitude zone is received from among the altitude zones. A rendered image is generated by rendering the corresponding grid for the selected altitude zone. The rendered image is displayed on the GUI.