Hurricanes have human names such as Alex, Nigel, and Sarah.you probably have your name hurricane Or know someone who does. But where do these names come from?
United Nations Hurricane Commission World Meteorological Organization (WMO) determines a list of tropical storm names as part of its annual meeting. The committee does not base names on specific people, but chooses common names that are familiar to people in the area experiencing them. is not intended to Rather, it is intended to facilitate communication about storms.
James Marshall Shepherd, director of the Atmospheric Sciences Program at the University of Georgia and former U.S. President, said, “Hurricanes themselves are such important stressors to society that naming a hurricane is a way to reduce its threat. can be tracked and understood at all times, the Meteorological Society told Live Science.
Shepard said naming a hurricane also gives the public a point of reference. I can tell,’ said Shepard.
Hurricane Katrina is one of the worst hurricanes in US history. The storm hit coastal areas of Alabama, Louisiana, and Mississippi. summer According to the National Oceanic and Atmospheric Administration (NOAA), more than 1,800 people died in 2005 and many more homes were destroyed. National Weather Service.
“Giving a name, in a strange way, not only branded the Storm in real time to convey a more effective message, but when I heard similar types of Storms could occur, I think it provides a long-term reference point for people to understand,” Shepard said.
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A hurricane is a type of tropical cyclone, a storm that rotates rapidly over tropical oceans. When the maximum sustained wind speed of a tropical storm exceeds 39 mph (63 km/h), WMO names it. The title Hurricane is only given to tropical storms that originate in the Atlantic Basin and have maximum sustained wind speeds of 74 mph (119 km/h) or greater. Therefore, not all named tropical cyclones are hurricanes. Hurricanes form in the Caribbean Sea, the Gulf of Mexico, the Atlantic Ocean, the eastern North Pacific, and occasionally the central North Pacific. NOAA.
Tropical cyclones in other parts of the world have different titles. According to the WMO, it is called a typhoon in the western North Pacific, a cyclone in the Bay of Bengal and the Arabian Sea, a severe tropical depression in the western South Pacific and the southeastern Indian Ocean, and a tropical depression in the southwestern Indian Ocean.
The WMO continues to rotate its list of tropical cyclone names around the world. Names are chosen by the tropical cyclone regional bodies responsible for each basin. One of them is the Atlantic Tropical Storm Hurricane Commission. The Commission is composed of 32 members and includes experts from the National Meteorological and Hydrological Services of North America, Central America and the Caribbean.
The WMO chooses short, distinctive human names for the Atlantic Basin storms, such as Alex, Nigel, and Sarah. This is because they are quicker, easier to use, and easier to remember than more technical names that include longitude and latitude. Also, according to NOAA, multiple hurricanes can be active at the same time, so hurricane names based on dates can be confusing. National Hurricane Center and Central Pacific Hurricane Center.
The Caribbean, Gulf of Mexico, and North Atlantic regions use one list of severe storm names, and the Eastern North Pacific region uses a second list. Both are used in a 6 year cycle and then repeated. for example, 2022 hurricane season According to WMO, 2028 will be the same. websiteOther basins have slightly different tropical cyclone naming systems, and not all are based solely on human names. For example, tropical storms in the Northwest Pacific and North Indian Ocean are named primarily after flowers, animals, trees, food, and other descriptive words. met officeUK National Weather Service
For each season, the names of Atlantic Basin storms are ordered alphabetically, with each letter beginning one storm (with a few exceptions). For example, in the eastern North Pacific he called the first storm in 2023 (and 2029) Adrian, the second Beatrice, and the last Zelda. Some characters have been left out because it’s too hard to find a good name for them. North Pacific names skip ‘q’ and ‘u’, while Caribbean, Gulf of Mexico, and North Atlantic storm names also omit ‘x’, ‘y’, and ‘z’.
WMO has a preliminary list of supplementary names in case there are more named storms in 2005, 2020 and 2021 than those on the initial list. increase. These names were previously taken from Greek letters, but the WMO replaced them with common human names in 2021. The organization eliminated the Greek letters because some such as zeta, eta, and theta have similar pronunciations that can lead to confusion and did not always translate well into different languages. Also, the Greek alphabet has a limited number of letters, and storm names are sometimes obsolete.
“If a storm is significant enough in terms of loss, life, or destruction, its name will be removed from its six-year rotating list,” Shepard said. does not occur.
Originally published in Live Science.