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;
1999 Pacific typhoon season
On April 22, a tropical disturbance which had developed in the Philippine Sea moved over Mindanao and intensified into a tropical depression whilst it was still overland. The depression soon moved overwater again as it tracked north to the east of the Philippines, becoming Tropical Storm Kate the next day. The JTWC initially forecast that the storm would only intensify slightly, as they predicted it to move north-northeast into an unfavorable environment. However, Kate instead moved on a more northerly route and entered an area with minimal wind shear. On April 26 Kate became a typhoon, the first of the season, and reached its peak strength with 140 km/h (85 mph) soon after. Later that day, the typhoon's motion acclerated to the northeast and it passed to the north of Iwo Jima. Kate then began to lose its convection and became an extratropical on April 28 to the northeast of Iwo Jima.