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;
2004–05 South-West Indian Ocean cyclone season
Toward the end of October, low pressure areas developed on both sides of the equator in the west-central Indian Ocean. The system in the North Indian Ocean failed to develop, but the southern hemisphere system became Tropical Disturbance 02 on October 25. Moving westward, the disturbance had an organized area of thunderstorms near the center, with favorable conditions provided by the subtropical ridge. The MFR upgraded the disturbance to a depression on October 26, and briefly downgraded the system after the circulation became exposed, only to upgrade it again to a depression the next day. The JTWC initiated warnings on the system as Tropical Cyclone 02S on October 27, estimating 1 minute winds of 65 km/h (40 mph). That day, the system passed about 370 km (230 mi) north of Madagascar. Wind shear in the region caused the storm to weaken again. On October 29, the weak disturbance moved ashore in eastern Tanzania near Dar es Salaam, dropping heavy rainfall.