Keywords: Ivan 1979 track.png Track map of Cyclone Ivan of the 1978-79 Australian region cyclone season The points show the location of the storm at 6-hour intervals The color represents the storm's maximum sustained wind speeds as classified in the Saffir-Simpson Hurricane Scale see below and the shape of the data points represent the nature of the storm according to the legend below User Nilfanion/Tc/T The background image is from NASA Tracking data is from http //jtwccdn appspot com/NOOC/nmfc-ph/RSS/jtwc/best_tracks/wpindex html JTWC 2013-06-30 Supportstorm Tropical cyclone tracks 1978-79 Australian region cyclone season track maps Australian region tropical cyclone tracks |