One tropical cyclone, named Sanvu, occurred over the western North Pacific and South China Sea in May 2012.
Sanvu formed as a tropical depression over the western North Pacific about 250 km south of Guam on 22 May and moved generally northwestwards. Sanvu intensified into a tropical storm that afternoon. It strengthened further into a severe tropical storm on 23 May and moved north-northwestwards. Sanvu moved northwards and became a typhoon about 510 km south-southwest of Iwo Jima on 24 May, reaching its peak intensity with an estimated sustained wind of 120 km/h near its centre. Sanvu turned to move northeastwards on 25 May and subsequently weakened into a tropical storm on 27 May. Sanvu became an extratropical cyclone over the western North Pacific to the southeast of Japan on 28 May.
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