[1] It was predicted by the Mauritius Meteorological service that there would be between nine and eleven named storms in the South West Indian Ocean during the season.

Early on August 17, the JTWC reported that an area of disturbed weather had formed about 1200 kilometres, (750 miles), to the east of Diego Garcia.

[7] During September 17, both TCWC Jakarta and the JTWC reported that an area of convection had persisted about 740 km (460 mi), to the south east of Sumatra in Indonesia.

[8][9] Satellite imagery was showing that the convection was slowly starting to consolidate with a well defined low level circulation centre off the western coast of Sumatra.

[10] The JTWC then declared early the next day that the disturbance had dissipated as it crossed 90E and moved into RSMC La Réunion's area of responsibility.

Early on November 7, the JTWC issued a Tropical Cyclone Formation Alert on a system north of Diego Garcia.

Despite forecasts that the system would strengthen to a depression, it was substantially affected by shear, and as a result, the JTWC cancelled their TCFA on November 9.

On November 22, RSMC La Réunion commenced issuing advisories for Tropical Disturbance 05 about 500 mi (800 km) northeast of Madagascar.

The weakening continued steadily, and the final advisory was issued on December 12 when the remnants were 370 miles (600 km) north of Rodrigues.

The remnants continued to show a Low level Circulation Centre accompanied by flaring convection as they headed west or northwest, and the organisation began to improve again on the 19th.

[19] It continued to organize throughout the next day, and by the 21st of December it was named Moderate Tropical Storm David by the Mauritius Meteorological Service.

The final advisory from the RSMC was issued on December 25, although the remnant continued to produce bursts of poorly organized convection for several days as it reversed direction again and headed west.

In post-season analysis, David was downgraded to a Moderate Tropical Storm as winds were reassessed to have never exceeded 85 km/h (55 mph).

At 0300 UTC on January 6, the JTWC starts issuing advisories designating the system as 07S, and shortly thereafter the RSMC upgraded it to Moderate Tropical Storm Edzani.

An area of disturbed weather, first observed over the Mozambique Channel around 8 January, moved across northern Madagascar and into the Indian Ocean where it displayed occasional bursts of convection.

On 15 January the LLCC improved in organisation, and the RSMC designated it as a Tropical Disturbance 245 nmi (454 km) to the west-southwest of La Réunion.

On January 26, RSMC La Réunion announced that a Zone of Disturbed Weather had formed about 350 miles (560 km) NNE of Mauritius.

By January 29 it displayed hybrid characteristics and was classified as a subtropical depression, although the maximum winds reached storm strength.

On February 15, the RSMC announced the formation of Tropical Disturbance 12 approximately 650 nmi (1,200 km) NNE of La Réunion.

The remnants of Cyclone Robyn crossed into this basin on 7 April as a Filling Depression, and a single advisory was issued by RSMC La Réunion.