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cyclone

(Encyclopedia) cyclone, atmospheric pressure distribution in which there is a low central pressure relative to the surrounding pressure. The resulting pressure gradient, combined with the Coriolis…

Beira

(Encyclopedia) Beira bāy´rä, city (1997 pop. 397,368), capital of Sofala province, E central Mozambique, a seaport on the Mozambique Channel (an arm of the Indian Ocean), at the mouths of the Púngoè…

hurricane

(Encyclopedia) hurricane, tropical cyclone in which winds attain speeds greater than 74 mi (119 km) per hr. Wind speeds gust over 200 mi (320 km) per hr in some hurricanes. The term is often…

storm

(Encyclopedia) storm, disturbance of the ordinary conditions of the atmosphere attended by wind, rain, snow, sleet, hail, or thunder and lightning. Types of storms include the extratropical cyclone,…

Tokelau

(Encyclopedia) Tokelau tōkəlou´, tōkĕlä´o͞o formerly Union Islands, island group (2015 est. pop. 1,500), c.5 sq mi (c.12 sq km), S Pacific, a self-administering territory of New Zealand. It is…

International Cyclone Definitions

Hurricanes, Typhoons, and More A “tropical cyclone” is the generic term for a giant whirlwind with storm activity surrounding a low-pressure center over tropical or subtropical waters. The terms…

Samoa

(Encyclopedia) Samoa, formerly Western Samoa, officially Independent State of Samoa, constitutional monarchy (2015 est. pop. 194,000), South Pacific, comprising the western half of the Samoa island…

Vanuatu

(Encyclopedia) Vanuatu vän˝wäto͞o´, officially Republic of Vanuatu, independent republic (2015 est. pop. 265,000), c.5,700 sq mi (14,760 sq km), South Pacific, E of Australia. Vanuatu is a 450-mi (…

meteorology

(Encyclopedia) meteorology, branch of science that deals with the atmosphere of a planet, particularly that of the earth, the most important application of which is the analysis and prediction of…

Tuvalu

(Encyclopedia) Tuvalu to͞oväl´o͞o, independent Commonwealth nation (2015 est. pop. 11,000), 10 sq mi (26 sq km), composed of nine low coral atolls, formerly known as the Ellice (or Lagoon) Islands,…