2014; Villarini et al. Tropical cyclones, including typhoons and hurricanes, are the most fatal and costliest weather disasters on our planet. This major hurricane drought surpassed the length of the eight-years from 1861-1868 when no major hurricane struck the United States' coast. Of the six typhoons, SOUDELOR claimed the most affected population, death toll, missing person, emergency aiding population, damaged home, and MUJIGAE claimed the most direct economic loss ( Table 1 ). Day-Night Line. Hurricane Patricia was the strongest hurricane on record in the Western Hemisphere with maximum sustained winds of 200 mph and a central pressure of 879mb. The number of tropical storms was below the 1981-2010 average of 12.1; the number of hurricanes was below the 1981-2010 average of 6.4; and the number of major hurricanes was near the 1981-2010 average of 2.7. The next update will be issued by 6 am Sunday 15 March. It was also the only tropical cyclone requiring the issuance of the Gale or Storm Signal No. 2.1 Review of tropical cyclones in 2015 2.1.1 Tropical cyclones over the western North Pacific (including the South China Sea) In 2015, a total of 27 tropical cyclones occurred over the western North Pacific (WNP) and the South China Sea (SCS) bounded by the Equator, 45°N, 100°E and 180°, less than the long-term (1961-2010) average figure of around 30. Tropical cyclones which occur in the Atlantic region and affect the Caribbean and USA usually comprise less than 15% of global tropical cyclone activity. It is not updated in real time. Tropical cyclones include depressions, storms and hurricanes. TROPICAL CYCLONES AFFECTING HONG KONG IN 2015: 3.1: Tropical Storm Kujira (1508): 20 – 25 June: 3.2: Typhoon Linfa (1510): 2 – 10 July: 3.3: Severe Typhoon Mujigae (1522): 1 – 5 October: 4. (Photo credit: NASA/NOAA GOES Project.) 2014).Thus, there has been a growing demand for better understanding these phenomena and simulations of the response of tropical cyclone activity to climate change. Three major hurricanes (Ignacio, Kilo and Jimena) were active across the two adjacent basins at the same time, the first time this occurrence has been observed. Note: This report catalogs recent tropical cyclones across the North Atlantic and East Pacific and places each basin’s tropical cyclone activity in a climate-scale context. This is the first year since reliable record keeping began in 1971 that the eastern Pacific saw nine major hurricanes. When El Niño conditions are present in the equatorial Pacific like in 2015, tropical cyclone activity across the North Atlantic basin tends to be suppressed due to increased wind shear, an unfavorable condition for tropical cyclone development. Tropical cyclone genesis position in 2015: 2.2: Monthly frequencies of the occurrence of tropical cyclones in the western North Pacific and the South China Sea in 2015: 2.3: Tracks of the three tropical cyclones affecting Hong Kong in 2015: 2.4: Infra-red satellite imagery of Super Typhoon Soudelor (1513) at peak intensity at 2 a.m. on 4 August 2015 Tropical cyclogenesis, or the formation of a tropical cyclone, is the least understood phase of the tropical cyclone life cycle and one of the great mysteries in tropical meteorology. On 6 Nov 2015 Tropical Cyclone MEGH is moving west over the Arabian Sea, strengthening. Meteorological and climate analysis centres across the Southwest Pacific are indicating above average numbers of tropical cyclones (TC) for the 2015–16 season (November 2015 to April 2016). While some tropical cyclones stay out in the sea, others pass over land. 3.2 Typhoon Linfa (1510): 2 – 10 July 2015. Max wind speed 230km/h. Z. Wang, in Encyclopedia of Atmospheric Sciences (Second Edition), 2015. Current Active Cyclones; Archive. Super Typhoon Maysak (1504) 31/3/2015 1200 UTC. Tropical cyclones are the most severe storm systems in the tropics. Front Page; Content; Track; Animation; Figures; Tables; Other Information; TABLE 4.9 Typhoons requiring the issuing of the Hurricane Signal No. (Remember winds flow clockwise around low-pressure systems, such as tropical cyclones, in the Southern Hemisphere). This list may not reflect recent changes (learn more). Cyclone Pam, large and destructive tropical cyclone in the South Pacific Ocean that affected Vanuatu, Tuvalu, Kiribati, and New Zealand during March 2015. 10 during the period 1946-2015 . A hurricane (or typhoon, or severe tropical cyclone), the strongest storm on Earth, is a cyclonic (rotary) storm that derives its energy from cloud formation and rainfall, unlike frontal cyclones that derive their power from a temperature gradient. 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