The name Betsy has been used for six tropical cyclones worldwide: three in the Atlantic Ocean, two in the Australian region, and one in the South-West Indian Ocean.
In the Atlantic:
In the Australian region:
In the South-West Indian:
The name Kate or Katie has been used for nineteen tropical cyclones worldwide, five in the Atlantic Ocean, eleven in the western Pacific Ocean, and three in the Southern Hemisphere.
The name Kara was used for two tropical cyclones worldwide.
The name Alice has been used for 19 tropical cyclones worldwide: 4 in the Atlantic Ocean, 10 in the Western Pacific Ocean, 2 in the South-West Indian Ocean, and 3 in the Australian region.
Tropical cyclones are ranked on one of five tropical cyclone intensity scales, according to their maximum sustained winds and which tropical cyclone basin(s) they are located in. Only a few scales of classifications are used officially by the meteorological agencies monitoring the tropical cyclones, but other scales also exist, such as accumulated cyclone energy, the Power Dissipation Index, the Integrated Kinetic Energy Index, and the Hurricane Severity Index.
Tropical Storm Carol was used for eight tropical cyclones world wide: three in the Atlantic Ocean, four in the Australian region of the Indian Ocean and one in the northwestern Pacific Ocean.
The name Ethel has been used to name five tropical cyclones worldwide, three times in the Atlantic Ocean, plus once each in the Australian region of the South Pacific Ocean and in the South-West Indian Ocean.
The name Sam or Samuel has been used for four tropical cyclones worldwide, one in the North Atlantic, two in the Western Pacific Ocean, and one in the Australian region of the Pacific. After 2000, the name Sam was retired in that region.
The following outline is provided as an overview of and topical guide to tropical cyclones:
Throughout 2006, 133 tropical cyclones formed in seven bodies of water known as tropical cyclone basins. Of these, 80 have been named, including two tropical cyclones in the South Atlantic Ocean, and a tropical cyclone in the Mediterranean Sea, by various weather agencies when they attained maximum sustained winds of 65 km/h (40 mph). The strongest storms of the year were Typhoon Yagi in the Western Pacific, and Cyclone Glenda of the Australian region. The deadliest and costliest storms of the year were a series of five typhoons that struck the Philippines; Chanchu, Bilis, Saomai, Xangsane, and Durian, with most of the damage being caused by Durian of November. Five Category 5 tropical cyclones were formed in 2006.
The name Amy has been used for one tropical cyclone in the Atlantic Ocean, eleven in the western Pacific Ocean, one in the southwest Indian Ocean, two in the Australian region, and the alternative spelling Ami has been used once in the southwest Pacific Ocean.
The name Chloe has been used for two tropical cyclones in the Atlantic Ocean and for two in the Australian region of the Indian Ocean.
During 2019, 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 150 systems formed with 102 of these developing further and were named by the responsible warning centre. The strongest tropical cyclone of the year was Typhoon Halong, which was estimated to have a minimum barometric pressure of 905 hPa (26.72 inHg), Halong also has the highest wind-speed, with 1-minute sustained wind speed of 305 kilometres per hour (190 mph).
During 2020, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, 141 tropical cyclones formed in bodies of water known as tropical cyclone basins. Of these, 104, including three subtropical cyclones in the South Atlantic Ocean and three tropical-like cyclones in the Mediterranean, were named by various weather agencies when they attained maximum sustained winds of 35 knots. The strongest storm of the year was Goni, peaking with a pressure of 905 hPa (26.72 inHg) and with 10-minute sustained winds of 220 km/h (140 mph). The deadliest storm of the year was Eta which caused 175 fatalities and another 100+ to be missing in Central America and the US, while the costliest storm of the year was Laura, with a damage cost around $19.1 billion in the Greater Antilles, The Bahamas, and the Gulf Coast of the United States.
In 2021, tropical cyclones have formed in six major bodies of water, commonly known as tropical cyclone basins. Tropical cyclones will be assigned names by various weather agencies if they attain maximum sustained winds of 35 knots. During this year, 127 systems have formed and 90 were named, including one subtropical depression and excluding one system, which was unofficial. One storm was given two names by the same RSMC. So far, the most intense storm of the year was Typhoon Surigae, with maximum 10-minute sustained wind speeds of 220 km/h (140 mph) and a minimum pressure of 895 hPa (26.43 inHg). The deadliest tropical cyclone so far was Typhoon Rai, which caused 393 fatalities in the Philippines and 1 in Vietnam, while the costliest so far was Hurricane Ida, which caused an estimated $65.25 billion USD in damage after striking Louisiana and the Northeastern United States. Six Category 5 tropical cyclones formed during the year, tying 2003.