Shortly after Yinxing, on November 9th, three storms simultaneously appeared in the South China Sea, creating a rare “convergence.”
On November 9th, three storms emerged in the South China Sea, leading to a rare “convergence.” These are Storms Toraji, Man-yi, and possibly Tembin.
The simultaneous appearance of three storms in November is a rare phenomenon.
Specifically, Storm No. 23 (international name: Toraji, tropical storm level) formed over the Northwestern Pacific Ocean, to the east of the Philippines. The storm center is approximately 1,110 km east of Manila, Philippines, with wind speeds reaching level 8 (18 m/s). It is forecasted that Toraji will move northwest at a speed of 25 km/h, intensifying as it approaches the eastern region of Luzon (Philippines). The storm may make landfall on the Luzon coast on the 11th.
Storm No. 24 (international name: Man-yi, tropical storm level) was also noted to form in the Northwestern Pacific Ocean on the same day. The storm center has wind speeds of level 8 (18 m/s), a pressure of 998 hPa, and a radius of strong winds of level 7 from 50-100 km. Man-yi is expected to move northwest at about 25 km/h, with little change in intensity. After two days, the storm is predicted to gradually weaken.
Additionally, the tropical disturbance 94W in the distant sea is rapidly intensifying. Forecasts suggest that 94W could develop into Storm No. 25 (international name: Tembin) within the next one or two days.
The simultaneous occurrence of three storms in November is a rare phenomenon. Weather expert Xin Xin from China Weather Channel noted that the phenomenon known as “triple convergence” previously occurred in 1959 and 1968. Moreover, instances of three cyclones coexisting have also been recorded in 1953, 1957, and 1981. However, some of those were tropical depressions or had transformed into extratropical cyclones.
The cause of this phenomenon is due to a stronger subtropical high moving northward, combined with higher than normal sea surface temperatures. The tropical convergence zone is also experiencing strong activity. Sea surface temperatures in some areas of the Northwestern Pacific and the southern South China Sea currently remain at 26℃, even exceeding 28℃, creating favorable conditions for the formation and development of storms.
