For systems in the South Indian west of 90E and in the Southwest Pacific east of 160E which were unnamed, the alphanumeric designator applied by La Reunion or Fiji, respectively, is given in this column. The dates given in most cases refer to the time the system was in warning status and generally do not include the pre-depression stages of the disturbance.
Central pressure is given in millibars, which is numerically equivalent to hectopascals.
A separate table is given for each of the three Southern Hemisphere basins. An AWS on Low Isle recorded a peak 10-min MSW of 71 kts with gusts to 85 kts during the passage of Tropical Cyclone Rona. The system was still at minimal tropical storm intensity for a few hours west of 90E but was not named Francine by the Mauritius Meteorological Agency. This system was likely not fully tropical as it exhibited some characteristics of a baroclinic depression. This system likewise was probably some sort of hybrid-type storm, although there were some meteorologists who would have classified it as a tropical cyclone.