Storms were monitored by the Météo-France office (MFR) on Réunion island in an official capacity, as well as the American Joint Typhoon Warning Center (JTWC) on an unofficial base.

Krisy took a similar track and passed within 100 km (62 mi) of Rodrigues and Mauritius, causing heavy crop damage.

Using satellite imagery from National Oceanic and Atmospheric Administration, the agency estimated intensity through the Dvorak technique, and warned on tropical cyclones in the region from the coast of Africa to 90° E, south of the equator.

[6][7] On October 30, the JTWC began monitoring the system to the south of Diego Garcia,[8] and classified it as Tropical Cyclone 01S on November 1.

[2] On the next day, the MFR began issuing advisories on the system and quickly upgraded it to Moderate Tropical Storm Adelinina.

By contrast, the JTWC assessed that Adelinina rapidly intensified into the equivalent of a minimal hurricane on November 2, estimating peak 1‑minute winds of 140 km/h (85 mph) the next day.

[2] Before entering the south-west Indian Ocean, the Bureau of Meteorology (BoM) estimated that the system reached 10‑minute winds of 105 km/h (65 mph).

[9] However, the BoM did not include the system in its annual summary of the season,[10] and at the time it was considered a tropical depression in the Australian region.

By that time, the storm was moving steadily to the west-southwest,[9] steered by a ridge to the south,[11] and it attained tropical cyclone status two days later.

Later on January 14, Calasanjy made landfall in western Madagascar near Morondava, and soon after moving ashore it turned to the southwest,[13] its motion changed due to a ridge to the southeast.

[12] Cyclone Calasanjy caused heavy damage in western Madagascar, with a peak wind gust of 195 km/h (121 mph) in Maintirano.

[18] The nascent disturbance moved to the south and gradually intensified, becoming Moderate Tropical Storm Edme on January 21.

On the next day, the JTWC upgraded the storm to the equivalent of a minimal hurricane,[18] as Edme was aided by favorable upper-level conditions beneath an anticyclone.

By the time of peak intensity, Edme had begun moving southwestward and thereafter weakened due to increasing wind shear, imparted by a trough in the Westerlies.

During that time, the system intensified into Moderate Tropical Storm Firinga, and the JTWC upgraded it to the equivalent of a minimal hurricane on January 28.

[26] The JTWC, which designated the storm as Tropical Cyclone 11S, upgraded Hanitra to the equivalent of a minimal hurricane late on February 19.

[2][26] On February 22, the agency estimated peak 1‑minute winds of 230 km/h (140 mph), by which time Hanitra had begun a steady southwest motion.

By contrast, the MFR assessed slower strengthening, only upgrading it to tropical cyclone status on February 23 and estimating peak 10‑minute winds of 150 km/h (93 mph).

A low pressure area originated over eastern Mozambique and moved eastward over water, emerging near Beira.

On February 25, a tropical disturbance formed off the west coast of southern Madagascar and moved east-northeastward, steered by a ridge to the south.

Iana weakened slightly while moving east-southeastward through the country, emerging into the Indian Ocean on February 27 near Farafangana.

[27] A tropical disturbance originated just east of St. Brandon on March 23,[29] initially consisting of a disorganized area of convection without a distinct center.

[2] The storm turned to the southwest due to a trough in the region,[30] bringing it parallel to the east coast of Madagascar.

On March 26, the JTWC upgraded Jinabo to the equivalent of a minimal hurricane, and early the next day, the MFR estimated peak 10‑minute winds of 115 km/h (71 mph).

Around that time, the storm stalled about 110 km (68 mi) east of the coast of Madagascar,[29] later turning to the southeast due to a ridge.

[2] Due to a ridge to the south,[33] Krisy's track shifted to the west that day before turning southward on April 1.

The MFR upgraded the storm to cyclone status on April 2, and on that day the JTWC estimated peak 1‑minute winds of 195 km/h (121 mph).

A ridge turned the remnants of Krisy to the north toward Tropical Depression Lezissy, and the two systems merged on April 11.

[2] It quickly intensified into Moderate Tropical Storm Lezissy as it took a westward trajectory, reaching peak winds of 85 km/h (53 mph) by late on April 6.

It approached former Cyclone Krisy, and the two systems merged by April 11, both losing their circulations and leaving behind a disorganized remnant low.