Tropical cyclones in 1999

Tropical cyclones in 1999
Year boundaries
First system05F
FormedJanuary 1, 1999
Last systemAstride
DissipatedJanuary 3, 2000
Strongest system
NameGwenda
Lowest pressure900 mbar (hPa); 26.58 inHg
Longest lasting system
NameDora
Duration17 days
Year statistics
Total systems142
Named systems72
Total fatalities≥ 17,491
Total damage$5.334 billion (1999 USD)
Related articles
Other years
1997, 1998, 1999, 2000, 2001
From left to right: Floyd, a tropical disturbance, and Gert on September 13

During 1999, tropical cyclones formed within seven different bodies of water called basins. To date, 142 tropical cyclones formed in bodies of water known as tropical cyclone basins, of which 72 were given names by various weather agencies. The strongest tropical cyclone of the year was Gwenda, attaining maximum sustained winds of 120 knots (220 km/h; 140 mph) and a pressure of 900 hPa (26.58 inHg), later tied with Inigo in 2003. Floyd was the costliest tropical cyclone of the year, with around $6.5 billion worth of damages as it affected the Bahamas, the East Coast of the United States, and the Atlantic Canada. The deadliest cyclone of this year was the 1999 Odisha cyclone, which was blamed for over 9,667 deaths as it devastated India. It was also the strongest Northern Hemisphere cyclone of the year with the pressure of 912 hPa (26.93 inHg) and third most intense tropical cyclone worldwide next to Cyclone Gwenda and Cyclone Vance. Three Category 5 tropical cyclones were formed in 1999. The accumulated cyclone energy (ACE) index for the 1999 (seven basins combined), as calculated by Colorado State University was 606.4 units.