Tropical cyclones in 2025
Updated: Wikipedia source
In 2025, tropical cyclones have been forming 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). The strongest system this year so far is Hurricane Melissa, which attained a minimum barometric pressure of 892 hPa (26.34 inHg), while the costliest and deadliest system so far is Cyclone Senyar / Tropical Depression 34W in the North Indian and Western Pacific Oceans which caused at least 1,214 deaths and $19.8 billion in damage in Thailand, Malaysia and Indonesia. The accumulated cyclone energy (ACE) index for the year (seven basins combined) so far, as calculated by Colorado State University (CSU), is 695.1 units overall. Tropical cyclones are primarily monitored by ten 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's Joint Typhoon Warning Center (JTWC), and the Brazilian Navy Hydrographic Center.