Number of tropical cyclones in the Western North Pacific basin, 1950–2010

Figure2-13_resize

Figure 2-13 The number of tropical cyclones in the Western North Pacific basin as observed by the World Meteorological Organization (WMO; black lines/dots) and the Joint Typhoon Warning Center (JTWC; red lines/dots) since 1950. Lines indicate smoothed storm trend. There are regular cycles of greater and lesser annual storm numbers, and there were only 14 named storms in 2010.

(Courtesy of Michael Kruk. Data from the International Best Track Archive for Climate Stewardship [IBTrACS].)