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see hurricanehurricane,
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 restricted to those storms occurring over the N Atlantic Ocean; the identical phenomenon occurring over
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a tropical cyclone that occurs in the western Pacific, to 170°E long., north of the equator. Moving west and northwest with a velocity of 10–20 km an hour, typhoons reach the coast of Indochina, China, and Korea. Changing direction toward the north or northeast, they reach a velocity of 30–50 km an hour, gusting at times to over 100 km an hour. Some typhoons reach southern Japan and, as nontropical cyclones, occasionally reach the Soviet Primor’e region, the Kuril Islands, and even as far as Kamchatka.

The frequency of typhoons is greater than that of tropical cyclones in any other region of the globe. On the average there are approximately 30 typhoons a year. Most develop to the stage of hurricanes, with a wind velocity of over 30 m per sec, while the rest reach the stage of tropical storms. Approximately 70 percent of typhoons occur between July and October, when the intertropical convergence zone shifts far into the northern hemisphere. The diameters of typhoons are relatively small, up to several hundreds of kilometers; in the center the air pressure drops and may reach record lows of less than 90 kilonewtons per sq m, or 900 millibars. Typhoons cause strong waves and are accompanied by enormous amounts of precipitation—up to several hundred millimeters, and in some cases more than 1,000 mm. In the coastal regions of East Asia, typhoons often cause great destruction as a result of floods, tidal waves, and other natural disasters.


Riehl, H. Tropicheskaia meteorologiia. Moscow, 1963. (Translated from English.)
Mamedov, E. S., and N. I. Pavlov. Taifuny. Leningrad, 1974.



A severe tropical cyclone in the western Pacific.


1. a violent tropical storm or cyclone, esp in the China seas and W Pacific
2. a violent storm of India
References in periodicals archive ?
A week after the typhoon crossed the Bicol region, the scene in Sagnay, some 43 kilometers from Naga City, the economic hub of Camarines Sur province, was of severe devastation as residents tried to build temporary shelters.
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Caption: Eurofighter Typhoons from the Royal Air Force and partner nations logged over 3,000 flight hours and conducted over 600 sorties as part of the 2011 NATO mission in Libya.
About 40 domestic flights were grounded, while 73 ferries and hundreds of fishing boats were ordered to remain in port as typhoon Melor hit the village of Batag on the northern tip of Samar island.
Suddenly, discussions on typhoons became national and no longer confined to typhoon-prone areas.
Scientists expected that rising sea temperatures could intensify typhoons but were unsure how heat from sub surface water shaped the intensity of a typhoon season.
However, the situation has changed when the region was hit by strong typhoons for two consecutive years in 2011 and 2012.
In Taiwan, automobile theft claims have sometimes experienced a sharp increase right after typhoons, which caused floods.
Private companies in Dubai have joined the fund-raising drive for the victims of super typhoon Haiyan in Central Philippines.
BEIJING -- The number of typhoons that will land along China's coastal areas this year is estimated to be between seven and nine, the National Marine Environmental Forecasting Centre said on Sunday.