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Tropical cyclones in 2004
Year summary map
Year boundaries
First system
Ken
Formed
January 1, 2004
Last system
Raymond
Dissipated
January 10, 2005
Strongest system
Name
Gafilo
Lowest pressure
895 mbar (hPa); 26.43 inHg
Longest lasting system
Name
Ivan
Duration
22 days
Year statistics
Total systems
130
Named systems
80
Total fatalities
6,609 (97)
Total damage
$80.672 billion (2004 USD)
Related articles
2004 Atlantic hurricane season
2004 Pacific hurricane season
2004 Pacific typhoon season
2004 North Indian Ocean cyclone season
2003–04 South-West Indian Ocean cyclone season
2004–05 South-West Indian Ocean cyclone season
2003–04 Australian region cyclone season
2004–05 Australian region cyclone season
2003–04 South Pacific cyclone season
2004–05 South Pacific cyclone season
Other years 2002, 2003, 2004, 2005, 2006
In the North Atlantic Ocean, Hurricanes Frances (top left) and Ivan (bottom right) on September 5, 2004
During 2004, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, a total of 132 systems formed with 82 of these developing further and were named by the responsible warning centre. The strongest tropical cyclone of the year was Cyclone Gafilo, which was estimated to have a minimum barometric pressure of 895 hPa (26.43 inHg). The most active basin in the year was the Western Pacific, which documented 29 named systems, while the North Atlantic 15 named systems formed. Conversely, both the Eastern Pacific hurricane and North Indian Ocean cyclone seasons experienced a below average number of named systems, numbering 12 and 4, respectively. Activity across the southern hemisphere's three basins—South-West Indian, Australian, and South Pacific—was spread evenly, with each region recording seven named storms apiece. Throughout the year, 28 Category 3 tropical cyclones formed, including seven Category 5 tropical cyclones formed in the year. The accumulated cyclone energy (ACE) index for the 2004 (seven basins combined), as calculated by Colorado State University was 1024.4 units.
The costliest tropical cyclone was Hurricane Ivan, which struck Caribbean and United States in September causing a tornado outbreak, with US$26.1 billion in damage. The deadliest tropical cyclone of the year was Hurricane Jeanne who killed for at least 3,006 deaths in Haiti.
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