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Overview of Tropical Cyclones in December 2011


(Tracks)

        One tropical cyclone, named as Washi occurred over the western North Pacific and South China Sea in December 2011. 

        Washi formed as a tropical depression over the western North Pacific about 560 km southeast of Yap on 14 December and moved west-northwestwards. It intensified into a tropical storm on 15 December, reaching its peak intensity with an estimated maximum sustained wind of 75 km/h near its centre on the following day and crossed the southern Philippines that evening. Washi entered the southern part of the South China Sea on a westward track on 18 December. It turned to move west-southwestwards on 19 December and dissipated over the southern part of the South China Sea to the southeast of Vietnam that evening. According to press reports, Washi brought flash floods and landslip to the Philippines where 1 010 people were killed, over 1 600 people injured and around 50 people missing. Some 4 000 houses were also damaged or destroyed. 

Tropical cyclone track in December 2011
Tropical cyclone track in December 2011.