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| Tropical cyclones in 2007 | |
|---|---|
 Year summary map | |
| Year boundaries | |
| First system | TD |
| Formed | January 5, 2007 |
| Last system | Helen |
| Dissipated | January 6, 2008 |
| Strongest system | |
| Name | George[nb 1] |
| Lowest pressure | 902 mbar (hPa); 26.64 inHg |
| Longest lasting system | |
| Name | Dora |
| Duration | 13 days |
| Year statistics | |
| Total systems | 130 |
| Named systems | 79 |
| Total fatalities | 17,551 total |
| Total damage | $21.44 billion (2007 USD) |
Among them, George (fourth image in the first row) was the most intense, with a minimum central pressure of 902 hPa.
During 2007, 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 129 systems formed with 79 of these developing further and were named by the responsible warning centre. The strongest tropical cyclone of the year was Cyclone George, which was estimated to have a minimum barometric pressure of 902 hPa (26.64 inHg). The deadliest tropical cyclone of the year was Cyclone Sidr in the North Indian Ocean which killed 15,000 people in Bangladesh. The costliest tropical cyclone of the year was Cyclone Gonu in the North Indian Ocean, which caused more than $4.41 billion in damage after striking Oman, United Arab Emirates, Iran and Pakistan. The most active basin in the year was the Western Pacific, which documented 24 named systems. The North Atlantic had an above-average season with 15 named storms. The Eastern Pacific hurricane season experienced a below-average number of tropical storm intensity systems, numbering 11. Activity across the Southern Hemisphere's three basins – South-West Indian, Australian, and South Pacific – was fairly significant, with the regions recording 25 named storms altogether, with the most intense storm of the year coming from the Australian basin. Throughout 2007, twenty one major tropical cyclones formed, including five Category 5 tropical cyclones in the year. The accumulated cyclone energy (ACE) index for the 2007 (seven basins combined), as calculated by Colorado State University was 568.1 units.
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