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2004 Atlantic hurricane season

2004 Atlantic hurricane season
2004 Atlantic hurricane season summary map.png
Season summary map
Seasonal boundaries
First system formed July 31, 2004 (2004-07-31)
Last system dissipated December 3, 2004 (2004-12-03)
Strongest storm
Name Ivan
 • Maximum winds 165 mph (270 km/h)
(1-minute sustained)
 • Lowest pressure 910 mbar (hPa; 26.87 inHg)
Seasonal statistics
Total depressions 16
Total storms 15
Hurricanes 9
Major hurricanes
(Cat. 3+)
6
Total fatalities >3,270
Total damage $57.37 billion (2004 USD)
Related articles
Atlantic hurricane seasons
2002, 2003, 2004, 2005, 2006
Category 3 hurricane (SSHWS)
Hurricane Alex 04 aug 2004 1500Z.jpg Alex 2004 track.png
Duration July 31 – August 6
Peak intensity 120 mph (195 km/h) (1-min)  957 mbar (hPa)
Tropical storm (SSHWS)
TS Bonnie 2004.jpg Bonnie 2004 track.png
Duration August 3 – August 13
Peak intensity 65 mph (100 km/h) (1-min)  1001 mbar (hPa)
Category 4 hurricane (SSHWS)
Hurricane Charley 2004.jpg Charley 2004 track.png
Duration August 9 – August 14
Peak intensity 150 mph (240 km/h) (1-min)  941 mbar (hPa)
Category 2 hurricane (SSHWS)
Hurricane Danielle 16 aug 2004 1815Z.jpg Danielle 2004 track.png
Duration August 13 – August 21
Peak intensity 110 mph (175 km/h) (1-min)  964 mbar (hPa)
Tropical storm (SSHWS)
Tropical Storm Earl (2004).jpg Earl 2004 track.png
Duration August 13 – August 15
Peak intensity 50 mph (85 km/h) (1-min)  1009 mbar (hPa)
Category 4 hurricane (SSHWS)
Hurricane Frances 2004.jpg Frances 2004 track.png
Duration August 24 – September 8
Peak intensity 145 mph (230 km/h) (1-min)  935 mbar (hPa)
Category 1 hurricane (SSHWS)
Hurricane Gaston 2004.jpg Gaston 2004 track.png
Duration August 27 – September 1
Peak intensity 75 mph (120 km/h) (1-min)  985 mbar (hPa)
Tropical storm (SSHWS)
Hermine Aug 30 2004 1535Z.jpg Hermine 2004 track.png
Duration August 27 – August 31
Peak intensity 60 mph (95 km/h) (1-min)  1002 mbar (hPa)
Category 5 hurricane (SSHWS)
Hurricane Ivan 13 sept 2004 1900Z.jpg Ivan 2004 track.png
Duration September 2 – September 24
Peak intensity 165 mph (270 km/h) (1-min)  910 mbar (hPa)

The 2004 Atlantic hurricane season was the costliest Atlantic hurricane season on record until surpassed by the following year. More than half of the 16 tropical cyclones brushed or struck the United States. The season officially began on June 1, and ended on November 30. Due to a Modoki El Niño – a rare type of El Niño in which unfavorable conditions are produced over the eastern Pacific instead of the Atlantic basin due to warmer sea surface temperatures farther west along the equatorial Pacific – activity was above average. The first storm, Alex, developed offshore of the Southeastern United States on July 31. It brushed the Carolinas and the Mid-Atlantic, causing one death and $7.5 million (2004 USD) in damage. Several storms caused only minor damage, including tropical storms Bonnie, Earl, Hermine, and Matthew. In addition, hurricanes Danielle, Karl, and Lisa, Tropical Depression Ten, Subtropical Storm Nicole and Tropical Storm Otto had no effect on land while tropical cyclones.

Hurricane Charley made landfall in Florida as a Category 4 hurricane on the Saffir–Simpson hurricane wind scale (SSHWS), causing $15.1 billion in damage in the United States alone. Later in August, Hurricane Frances struck the Bahamas and Florida, causing at least 49 deaths and $9.5 billion in damage. The most intense storm, and the one that caused the most damage, was Hurricane Ivan. It was a Category 5 hurricane that devastated multiple countries adjacent to the Caribbean Sea, before entering the Gulf of Mexico and causing catastrophic destruction on the Gulf Coast of the United States, especially Alabama and Florida. Throughout the countries it passed through, Ivan left 129 fatalities and over $23.33 billion in damage. The most significant tropical cyclone in terms of deaths was Hurricane Jeanne. In Haiti, torrential rainfall in the mountainous areas resulted in mudslides and severe flooding, causing at least 3,006 fatalities. Jeanne also struck Florida, inflicting extensive destruction. Overall, the storm caused at least $8.1 billion in damage and 3,042 deaths.


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