1999–2000 South-West Indian Ocean cyclone season
The 1999–2000 South-West Indian Ocean tropical cyclone season was the first on record in which two storms – Leon–Eline and Hudah – struck Mozambique at tropical cyclone intensity, or with maximum sustained winds of at least 120 km/h (75 mph). The most notable storm of the season was Eline, which was the longest-lasting storm on record in the basin. It lasted for 29 days while traversing the southern Indian Ocean, making the strongest landfall in decades along eastern Madagascar in late February. The storm was the first in a series of three storms that struck the country in early 2000, along with Gloria in March and Hudah in April. Collectively, the three storms killed at least 316 people. The season started on November 1, 1999, and ended for most of the basin on April 30, 2000; for Mauritius and the Seychelles, the season continued until May 15. These dates conventionally delimit the period of each year when most tropical cyclones form in the basin;
Tropical Storm Bavi (2015)
During the opening days of March 2015, a major westerly wind burst occurred, which subsequently contributed to the development of the 2014-16 El Nino event and the development of twin tropical cyclones in the Pacific Ocean on both sides of the equator. The first tropical cyclone became Severe Tropical Cyclone Pam within the South Pacific Ocean and directly affected the Solomon Islands, Vanuatu, New Caledonia and New Zealand. The second tropical cyclone was first noted by the United States Joint Typhoon Warning Center as a tropical disturbance during March 8, while it was located about to the southeast of Kwajalein Atoll in the Marshall Islands. The disturbance consisted of a large area of atmospheric convection, which was starting to wrap into the system's developing low level circulation centre. The disturbance was also thought to be in a favourable environment for further development at this time, with low vertical wind shear and a good outflow towards the equator. Over the next couple of days the system moved north-westwards through the Marshall Islands and into a marginal environment for further development, with moderate vertical wind shear being partially offset by the system's outflow. During March 10, the Japan Meteorological Agency subsequently started monitoring the disturbance as a tropical depression, while it was located about to the northeast of Bairiki in Kiribati.