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;
2001 North Indian Ocean cyclone season
The first storm of the season originated from a tropical disturbance that formed east of Somalia on May 18. Over the following few days, the system gradually organized, becoming a depression on May 21. It moved eastward toward the coastline of southwestern India and rapidly intensified on May 22, strengthening from a deep depression to a very severe cyclonic storm within 24 hours. After approaching the coastline, the storm turned to the north and northwest away from land due to a ridge. Based on the well-defined eye and the storm's satellite presentation, the IMD estimated peak winds of 215 km/h (135 mph) on May 24, and the JTWC estimated 1 minute winds of 205 km/h (125 mph). It became the strongest storm on record in the Arabian Sea, only to be surpassed by Cyclone Gonu in 2007. Soon after reaching peak intensity, the cyclone rapidly weakened as it turned northward. By May 28, it had deteriorated into a deep depression, and the IMD downgraded the storm to a remnant low before the circulation reached the Gujarat coast.