Tropical cyclones in 2024

During 2024, tropical cyclones formed in seven major bodies of water, commonly known as tropical cyclone basins. Tropical cyclones are named by various weather agencies when they attain maximum sustained winds of 35 knots (65 km/h; 40 mph). Overall, 119 systems formed this year, with 83 of them being named. The most intense storm of the year was Hurricane Milton, with a minimum barometric pressure of 895 hPa (26.43 inHg). The costliest tropical cyclone was Hurricane Helene, with a damage total of at least $78.7 billion, most of which occurred in the Southeastern United States. Meanwhile, the deadliest tropical cyclone was Typhoon Yagi, which caused at least 844 fatalities in Southeast Asia (particularly Myanmar, Vietnam, Thailand and the Philippines) and South China. However, Cyclone Chido may have killed more people, particularly in Mayotte.

2024 featured an average amount of storms forming, yet featured a lot of destructive activity. For instance, the West Pacific had an average year of 27 named storms, yet became the fourth most destructive season in the basin's history. Similarly, the North Atlantic had a very costly and active season with 18 storms being named. The East Pacific had a below average year with only 14 storms forming, yet also featured Hurricane John, which would go on to become the fourth costliest hurricane in the basin's history. The North Indian Ocean also recorded below average activity, with only 4 storms being named. The Southern Hemisphere had near-average activity, of which the strongest cyclone, the aforementioned Cyclone Chido, would become the costliest cyclone ever recorded in the South West Indian Ocean basin. The number of Category 5 tropical cyclones that formed this year totalled to five, while 23 major tropical cyclones formed throughout the year, which was slightly below average. The accumulated cyclone energy (ACE) index for 2024 (seven basins combined), as calculated by Colorado State University (CSU) was 621.2 units overall, which was below the 1991-2020 mean of 789.0 units globally.

Tropical cyclones are primarily monitored by 10 warning centers around the world, which are designated as a Regional Specialized Meteorological Center (RSMC) or a Tropical Cyclone Warning Center (TCWC) by the World Meteorological Organization (WMO). These centers are: National Hurricane Center (NHC), Central Pacific Hurricane Center (CPHC), Japan Meteorological Agency (JMA), Indian Meteorological Department (IMD), Météo-France (MFR), Indonesia's Meteorology, Climatology, and Geophysical Agency (BMKG), Australian Bureau of Meteorology (BoM), Papua New Guinea's National Weather Service (PNGNWS), Fiji Meteorological Service (FMS), and New Zealand's MetService. Unofficial, but still notable warning centers include the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA; albeit official within the Philippines), the United States Navy's Joint Typhoon Warning Center (JTWC) and the Brazilian Navy Hydrographic Center.