Track map of Subtropical Storm Cari March 2015 over the South Atlantic. Because South Atlantic tropical cyclones are rare events it was not officially named during its lifetime, being known under provisional designations 90Q.INVEST (NRL). The points show the location of the storm at 6-hour intervals. The colour 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